# Mapping Tonal Harmony Pro — user reviews > 236 indexed App Store user reviews of Mapping Tonal Harmony Pro by MDECKS MUSIC, LLC, rated 4.10/5 from 65 ratings. - Source: https://appshunter.io/ios/app/mapping-tonal-harmony-pro/id566767002/reviews - App overview in markdown: https://appshunter.io/ios/app/mapping-tonal-harmony-pro/id566767002.md - Rating breakdown: 5★ 44 · 4★ 4 · 3★ 5 · 2★ 5 · 1★ 7 ## What do users think of Mapping Tonal Harmony Pro? Overall sentiment: mixed **Pros** - 🎵 Exceptional sound quality and backing tracks - 🎓 Powerful harmonic analysis and visualization tool - 🎹 Comprehensive chord voicing options - 💡 Innovative tonal harmony mapping concept - 🎼 Excellent for jazz improvisation and composition - 📚 Extensive jazz standards library available - 🎯 Target notes and upper structures features - 🔄 MIDI export functionality - 📺 Helpful YouTube tutorial videos - 🎨 Visually appealing harmonic map display **Cons** - 😕 Steep learning curve and non-intuitive UI - 🐛 Frequent crashes and stability issues - 📱 Poor optimization for iPhone (too small) - 🔋 Significant battery drain in background - 💰 Expensive with many paywalled features - 🎯 Tiny, hard-to-hit buttons and controls - 📖 Inadequate in-app documentation and manual - 🎮 Complex menu navigation and interface design - ⚙️ Many features require separate purchases - 🔧 Limited customer support and slow responses - 🎵 Voicing keyboard doesn't update during playback - 💾 Difficulty saving and restoring purchases - 🎼 Limited editing capabilities for songs - 🔌 Confusing panel configuration system **Commonly reported bugs** - App crashes on play button press - Crashes when touching chords on map or staff - Voicing keyboard not showing during playback - Transposition not working properly - Repeat signs non-functional on iOS - Reharmonize feature crashes the app - Settings not saving between sessions - Chord edits not persisting after saving - Audio output distorted or missing - Import analysis creates single-line songs - Analyzer feature requires repurchase - Background activity causing excessive battery drain - MIDI out crashes the application - Restore purchases not working - App freezes on startup or during use - Slash chords not functioning properly - Chords disappearing in secondary dominant mode - Modulation entry causing error messages - Audio playback not syncing with visual elements - Tiny play button difficult to activate **Most requested features** - Simpler, more intuitive user interface redesign - In-app written manual and better documentation - Pause button in playback controls - Easier loop and measure selection functionality - Support for more time signatures beyond 4/4 and 3/4 - Ability to import XML files from iRealPro - Metronome integrated into play-along - Drum volume control - Virtual MIDI output for inter-app communication - Ability to edit and customize jazz standards - Export to PDF and image formats - Split-screen iPad support - Sync between iPhone and iPad via iCloud - More rhythm styles and variations - Rootless chords information - Simple chord input panel like iRealPro - Better guitar fretboard and voicings - Ukulele chords and custom tunings - Melody line addition capability - Lead-in bar customization ## Newest reviews (11 of 236) ### 3/5 — Design wird besser. Sound beste. *2026-01-25* Hello mDecks. Why is the stop button just 3mm of size ??? Still. Need 3 attempts to hit. Every time! Die Bedienbarkeit eine Katastrophe weil zu fummelig. UI nicht intuitiv. Zb sieht man sehr schlecht warum ein bestimmter tab jetzt geöffnet ist und wie man ihn wieder zu kriegt. Da müsste der kontrast der bedienelemente dynamisch viel klarer mitgehen. So verfummelt man sich leider zu oft. Loops setzen und einstarten dauert alles viel zu lange. Zum Üben brauche ich ein Werkzeug, kein Fummelquatsch. iReal Pro macht das vorbildlich, klingt leider nicht so gut. Und hier das Lob: Der generierte Sound ist erste Sahne und stellt alle anderen Playalong Apps in den Schatten. ### 3/5 — Drives me bunker *2026-01-04, version 10.8.3* Drives me bunker, everytime I dont use this app for a while, I cant never remember how to close the bottom half that I dont want to see, its never intuitive, should be a no brainer… Sounds great and all, but not very intuitive, the interface needs more work to be effortless. ### 4/5 — Mucho consumo de batería *2025-09-16, version 10.8.3* Sigue consumiendo batería aún estando en segundo plano ### 4/5 — A great tool but needs refinement *2025-02-21* This app feels like it’s directed at the jazz keyboardist and pianist. Somehow, I feel like the user interface could be made to be more intuitive. Navigation through the app is a bit complex. However, I like all the features that the app provides. I think more work needs to be done on the guitar fret board. The guitar resizing needs some work and needs more voicings for guitar. Overall it’s been a helpful tool for understanding harmony and composition. Thanks!! ### 2/5 — Crashes again *2024-10-19* Crashes when touching a chord on the map or the staff and when tapping play button. Works fine when touching the menus on the right side or else where. I’m running version 10 on iPad os 18 ### 2/5 — Voicing Keyboard not working iOS *2024-06-26, version 10.1.3* Why is the voicing keyboard not showing the voicings during playback? Seems like such an easy thing to have work ### 2/5 — Buggy, crashes immediately on iPhone *2024-06-01* Love the concept but it crashes whenever I try to start playback. App has worked in the past (somewhat) on various devices but is pretty unreliable to the point that I find myself not using it. Please hire a UX designer and a coder for a little bit to fix your bugs and this would be such a great way to study harmony! ### 2/5 — Nette Funktionen aber Buggy *2024-04-28* Für einen theorielastigen Jazzer nette Funktionen und eigentlich ein gutes Konzept, aber die Ausführung hakt: Die Konfiguration der Panels ist alles andere als intuitiv. Bei Import mit Analyse, z.B. aus iRealPro landet alles in einer Zeile, so dass man den Song nicht nutzen kann. Auf meine iPad ist die Audio-Ausgabe verrauscht. Außerdem erfährt man - wie so oft - beim Kauf nicht, welche Features als Add-On bezahlt werden müssen. Eigentlich macht das Programm ohne Add-Ons keinen Spaß. Ferner bietet der Entwickler auf seiner Website keinen Support, es gibt nur einen Blog und eine FAQ mit eher flachen Inhalten. Es gibt jede Menge Youtube-Tutorials, die helfen aber bei Problemen nicht. Nimmt man dazu, dass die Website weder ein Impressum hat noch irgendwas zum Datenschutz sagt, ergibt sich in Summe ein Bild, das der Entwickler seinen Fokus eher auf Neukunden als auf die Zufriedenheit von Bestandskunden hat. ### 2/5 — Could be cool….but *2024-04-14* I got the free Play-Along version of this app and liked it a bit more than IReal. I then paid $9.99 to download the 1300 song jazz catalog. It is for the most part a very comprehensive catalog. I then read on the app that if I bought the Pro version, I would keep all of my songs and be able to use them in the Pro version. This does not seem to be true, or it is not entirely evident how to get them to show up on the IOS version. I found this to be highly disappointing and am now considering this a waste of money! I really wanted to like this better, but the fact that I can’t access the songs that I ALREADY bought from them seems like wack. I emailed the contact information for the company and never received a response either. When I go to files on my IPad, there is no file under these two apps with songs in them???? Where are they? I could change my opinion on this I find out that there is a solution. I also find the “information” dialogue box that pops up every time you touch practically anything on this app to be tiresome. Perhaps there is a way to make this blue box stop popping up? Also, for the most part, on the IPad, I just want to play some songs for practice and have them sound good. I appreciate that the app does some better stuff than IReal, but I don’t really see the benefit of the whole mapping visual display of the computer thinking etc. since it is really quite small and I am trying to play while the song is going along. ### 2/5 — it’s way too complicated *2023-10-06* It seems like you have created something incredible, but the UI is impossible to use. I have no idea how to use it, even after watching all of your YouTube tutorials. I even went to the manual on the site, but there is no information on how to use anything. I don’t know what any of the side buttons to on the UI, I’ve clicked every button, but I can’t seem to get rid of the song editor. The buttons don’t really do what I think they would do. I am overall, just very confused. It seems like a revolutionary idea though to have all chord progressions in one page, and it seems like you put in a lot of work into this. But I think not many people understand what this is… If the UI can be better explained, and if you can explain to beginners what this is, this would be much better. I know quite a bit of theory, but I still do not understand which is a shame. I really would like to understand it. ### 2/5 — PoorExecution *2023-08-12* This ought to be the killer of clunky-sounding old iReal Pro, but its poor design choices and ham-handed execution make it almost unusable. I bought it to use on an iPhone, and on that platform at least, the UI elements are far too small and fiddly to use. Perhaps a fairer trial would involve a tablet or a laptop, but nowhere did I see a 'Not Suitable for iPhone' warning. MTHP crashed several times in the course of ordinary use, losing the work I was attempting. The existing library of tunes is partially pay-walled off, you cannot edit the ones that the platform does provide, and there is no reservoir of freely available ones to download. This kneecaps the app's usefulness. MTHP is a cathedral, when it ought to be a bazaar. It certainly does a better job than iReal Pro of being a rhythm section — far better. And its scope and ambition is also far greater than iReal Pro's. I believe, however, that it’s as an alternative to iRP that most users will approach MTHP, and they will be frustrated by it. MTHP's developers must first make their app far more usable along those lines, and make its other capabilities secondary to that. Getting rid of its wrong-headed approach to repertoire/catalogue would be essential. I gave MTHP two stars instead of one, only in recognition of what it's *trying* to do. ## Most critical reviews (10 lowest-rated) ### 1/5 — 没法用 *2026-01-20* 根本用不了，和声分析也不行 ### 1/5 — Don’t bother *2025-03-26, version 10.8.3* This app is just awful. Incomprehensible graphs and charts that are impossible to follow. I’m sure someone put a lot of effort into this but it’s just counter intuitive and not worth the time to figure out. ### 1/5 — Extremely Buggy *2024-12-05* Extremely buggy. It’s impossible to edit songs within the app. Try changing chords and then hit “back” and nothing saves. When trying to alter the title or other properties and hitting save it saves it briefly and then reverts back or renames it to “Untitled.” On top of all that there are so many missing features and missing customizations. Want to turn off the lead-in bar of clicks? You’re out of luck. Want to add a melody line? Again, out of luck. Want to add ukulele chords or custom tunings? Once again, out of luck. For an app (and IAPs) that are so expensive, this really is a disappointing purchase. ### 1/5 — Insatisfecho *2024-10-15, version 10.2.1* Tiene mucho que mejorar: todas las funciones se compran aparte, incluyendo las canciones. Los standards no están del todo bien, algunos vienen con compases de más, y si se requiere cambiar o quitar algún acorde no se puede, tampoco se pueden editar las canciones ni añadir o eliminar compases. En caso de que requieras crear una composición nueva si no compraste los acordes no podrás ingresar ningún acorde, la página se queda en blanco. No se puede exportar el audio a mp3. ### 1/5 — Déception *2024-04-15* Le son est légèrement mieux qu’Ireal certes Mais vous ne pouvez rien Éditer sur la version de base. Ensuite pour charger des nouveaux morceaux il faut aussi payer . Vous pouvez choisir des voicings de piano mais il sonnent souvent très mal. En plus certaines rythmiques type latin ou second Line sont vraiment mal programmées. Donc rapport qualité prix médiocre pour moi. ### 1/5 — Verkopft *2024-02-10* und teuer ### 1/5 — Paid $15 so I could buy the rest of what’s advertised *2024-01-23, version 9.7.8* Don’t waist your money. ### 1/5 — Analyzer *2023-12-01, version 9.7.8* Cantas veces hay que pagar por Analyzer que es una app dentro de aplicación.Ya pagare última vez y descargo de nuevo aplicación principal y ahorra no tengo Analyzer.Hay que pagar otra vez o alguien me puede ayudar por favor! ### 1/5 — Choc full of bugs *2023-10-19* Donc maintenant on est obligé de répéter une boucle 50 fois, ou alors d’appuyer 45 fois de suite sur le bouton ‘ - ‘ si on ne veut que 5 répétitions ? Vous rajoutez des sliders là où il n’y en a pas besoin, juste pour accumuler des nouveaux bugs sans avoir pris le temps de corriger les précédents? Désolé, l’idée de l’app est bonne mais la réalisation est catastrophique. ### 1/5 — A nova versão tem graves problemas na análise dos graus harmônicos. *2023-08-03, version 9.5.5* Problemas de interpretação de passagens harmônicas gerando análises equivocadas. ## Most praised reviews (10 highest-rated) ### 5/5 — Best app ever! *2024-11-29, version 10.3.1* Amazing app!!! ### 5/5 — Just perfect for harmony *2024-09-18* Just an amazing piece of work. Love all the views. Download the complete songpack. Very good with as a backup to a jazz course. Learn on the go. ### 5/5 — THE TOOL I HAVE BEEN LOOKING FOR *2024-06-18, version 10.1.3* An amazing tool that elegantly ties together a solution for every part of the composition process I have trouble with! ### 5/5 — God tier! *2024-06-16, version 10.1.3* I usually don’t write reviews but Mdecks’ stuff is absolutely the best in the world for learning harmony and unpacking scales. Even if you are a self taught metalhead, like me. This app is just genius. Thank you!! ### 5/5 — So underrated *2024-03-03, version 9.7.8* Amazing app to learn harmony ### 5/5 — Great teaching app! *2023-10-02* I have been using this app for over a year and it has helped me immensely. By listening to the MDecks video lessons and using the app I have become a more adept musician and have become more proficient at jazz improvisation while, at the same time, have been learning higher level music theory concepts. Love it. ### 5/5 — Fantastica app para aprender armonia *2023-10-01, version 9.5.5* Es de lo mejor que se puede encontrar para practicar con backing tracks y a la vez profundizar en la compresion de la cancion. Imprescindible para estudiantes y profesionales. ### 5/5 — Great app *2023-10-01, version 9.5.5* Aplicativo sensacional. 👏🏼👏🏼👏🏼 ### 5/5 — A Music Theory Playground! *2023-07-23* Mapping Tonal Harmony Pro is a playground for music theory enthusiasts! I spend hours exploring its features, experimenting with different chord progressions, and discovering new harmonic territories. Get it, you’ll learn a lot, no matter where you are in your music journey. ### 5/5 — Perfect for improv *2023-07-23, version 9.5.5* As an improvising musician, Mapping Tonal Harmony Pro has enriched my musical vocabulary significantly. It's like having a treasure trove of harmonic possibilities at my fingertips. The target notes are my go-to feature for sparking creative ideas! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*