# Byell Harmony > Music theory tool for chords, scales, and note relationships with MIDI support. (iPhone/iPad app by Garzotto GmbH.) - Source: https://appshunter.io/ios/app/byell-harmony/id440147722 (this page in markdown: same URL + `.md`) - Developer: [Garzotto GmbH](https://appshunter.io/developer/291676871) - Category: Music, Education - Price: Free - Rating: 3.30/5 from 3 App Store ratings · 12 written reviews indexed - Age rating: 4+ - Requires: iOS 6.0 · 24 MB - Languages: American English, German (Germany) - Released: 2011-09-30 - Data updated: 2026-08-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/byell-harmony/id440147722/reviews.md ## What is Byell Harmony? Byell Harmony is a practice-oriented tool for learning, listening to, and looking up chords, scales and musical contexts. Questions such as the following, can be answered easily: * Which notes on the guitar belong to the G Minor Blues Scale? * Where can I find notes on the violin, which can accompany the D-minor? * Which notes change when I change from C major to G major? * What can I play on the guitar when certain notes are given? * What is the name of the chord when you have the notes E, G and C * What scale is obtained if you replace the minor third with the major third in harmonic minor? * In the melody of a Song, you find e.g. the note A and D. To which chord might they belong? * How does the fingering on the violin move between G dorian and G phrygian? Which note on a cello corresponds * to which note on a guitar? * What scale is obtained if you use only the black keys on the piano? * How do I find a B° chord on the guitar? * What note must be played on a Eb tuned instrument to get the note C? and much more... Also you can interact with MIDI * Notes played on a Midi-Keyboard are shown on the display. * A sequencer can be used to change presets. * The current setting (root notes, scale, mode, marked notes) can be transferred via MIDI to another device with Byell Harmony. * Marked notes can be played to a connected MIDI device. * A song or chord progression can be defined and sent to all devices with Byell Harmony. ## Key features - Chord and scale lookup - Musical context exploration - Note relationship analysis - MIDI keyboard input display - Sequencer for preset changes - MIDI data transfer ## Recent user reviews (10 of 12) All indexed reviews: https://appshunter.io/ios/app/byell-harmony/id440147722/reviews.md ### 1/5 — Battery Drainer *2024-03-01* This app is either incredibly unoptimized, or running things it shouldn't in the background. It will make even an iPad Pro M2 drop battery unusually quickly and get very hot. This app could be useful, but it needs an update. ### 4/5 — Useful *2022-06-04* Can’t really complain because it does what it needs to do, which is display scales on the fretboard. I’ve learned a lot in a short amount of time using this app. ### 2/5 — doesn’t include ukulele tunings *2022-02-02* why no uke tunings? ### 5/5 — Atualização *2021-08-25* Por favor atualizem esse APP, e incluam também um novo instrumento o UKULELE. Esse app é 10 não o abandonem, por favor. Obrigado ### 5/5 — Excellent pour la théorie musicale *2020-05-03* C’est mon outil de référence pour travailler mes gammes, ou retourner les notes d’une gamme que je ne connais pas. ### 5/5 — 十分好用 *2020-04-03* 目前耗电太快了，就这一个缺点。希望更新！ ### 5/5 — Огромнейшее спасибо! *2019-02-27* Пожалуй это не только лучшее БЕСПЛАТНОЕ приложение в AppStore, но и самое полезное и удобное пособие по гармонии, которое я видел в жизни! Огромное спасибо за Ваш труд! ### 2/5 — Ipad app issues with ios8 update *2014-10-08* Onboard iPad keypad opens with Byell harmony program and will not close... meaning you can't see half the screen...I just purchased the program today and it is essentially useless until this gets fixed! Otherwise, the program is an outstanding learning tool. ### 5/5 — 下载了，推荐 *2013-07-25* 为严肃的弦乐器玩家，推荐，很丰富。 ### 5/5 — Incredibly Comprehensive & Necessary Musical Tutor! *2012-05-02* This is the only musical study help you will ever need. It successfully explains all there is to know about music theory, and it really makes the process easy and fun. You are in full control of the information you wish to discover and there are many ways to compare scales on different instruments, in notation, the related chordal theory, modes and everything else you could ever need for proper musical development. The scales can even be customised, as can all the chords, with all possibilities suggested as you go. You can even create a chord and then move through the cycle of 4ths to see how the chord relates to each new key. Everything is covered in this app and it's all within easy reach, it's really is a necessary experience that will satisfy you through your whole musical life. You can also hear all the scales, notes and chords when you need to, which is incredibly helpful for true understanding. There is also full MIDI compatibility, enabling you to play notes into Byell, but also letting you use other sound sources for all the chords and scales you create. This really is a fun and addictive learning machine, that covers all your needs and but also goes much further. You really shouldn't be without this app if you are serious about music. ## Frequently asked questions about Byell Harmony ### What is Byell Harmony? Byell Harmony is a practice-oriented tool for learning, listening to, and looking up chords, scales, and musical contexts. It helps answer questions about note relationships and musical structures. ### What musical instruments does Byell Harmony support? Byell Harmony is designed to help with instruments like the guitar, violin, and cello, by providing information on notes, scales, and chords relevant to them. ### Can Byell Harmony be used offline? The provided data does not specify whether Byell Harmony can be used offline. However, its core functionality revolves around looking up musical information, which may not require a constant internet connection. ### How does Byell Harmony handle MIDI input? Byell Harmony can display notes played on a MIDI keyboard and transfer current settings like root notes, scales, and modes via MIDI to other devices running the app. ### What is the age rating for Byell Harmony? Byell Harmony has an age rating of 4+, making it suitable for a wide range of users interested in music. ### How often is Byell Harmony updated? Byell Harmony was last updated on October 22, 2014, with version 1.41. This indicates infrequent updates in recent years. ### What devices can I use Byell Harmony on? Byell Harmony is available on iPhone, iPad, and iPod devices, as indicated by its supported devices list. ### Does Byell Harmony have ads? Byell Harmony does not contain advertisements, as indicated by the 'hasAds' flag being false. ## Version history (last 5 releases) ### 1.41 — 2014-10-22 This app has been updated by Apple to display the Apple Watch app icon. * Support for iOS 8 * Removed support for Airturn ### 1.40 — 2013-10-19 * iOS 7 support * More and improved samples for sound creation * Loadable color schemes (see support pages) * OSC support * VirtualMIDI support * Various corrections and optimizations ### 1.31 — 2012-10-17 iOS 6 / iPhone 5 Improved visualization of violin ### 1.30 — 2012-05-15 * Support for AirTurn * Improved sounds * Touching a chord in the circle of fifths plays it * Automatic proposal of key for chord progressions * Search preset by name * Time-based selection of next step in a song * Various corrections and improvements ### 1.20 — 2012-03-20 * Tutorial movies integrated into App * Presets can be deleted, and when storing a preset, the next free slot is suggested. * When controlled using MIDI, markings are fading out smoothly * Possibility to display shapes of chords, progressions etc. in the circle of fifths "instrument" * In major and minor scales, enharmonic interpretations are resolved (e.g. in G major, F#/Db is interpreted as F#) * Songs can be exported as file and imported again. * Better support for MIDI sustain pedal * Various corrections and improvements ## Apps similar to Byell Harmony | App | Rating | Price | Category | | --- | --- | --- | --- | | [All Chords - All Scales](https://appshunter.io/ios/app/all-chords-all-scales/id1613557968) | 4.3 (6) | Free | Music | | [Quinterval](https://appshunter.io/ios/app/quinterval/id373810100) | 4.3 (20) | Free | Music | | [Guitar: Fretboard Expert](https://appshunter.io/ios/app/guitar-fretboard-expert/id1601293040) | 4.5 (39) | Free | Music | | [Guitar Plus: arpeggio & piano](https://appshunter.io/ios/app/guitar-plus-arpeggio-and-piano/id1216234805) | 5.0 (5) | Free | Music | | [Guitar Scales: String Theory](https://appshunter.io/ios/app/guitar-scales-string-theory/id1591787859) | 4.9 (33) | Free | Music | | [Guitar Driller](https://appshunter.io/ios/app/guitar-driller/id1332062503) | 4.7 (94) | Free | Music | ## More apps by Garzotto GmbH - [Swiss Pro Map](https://appshunter.io/ios/app/swiss-pro-map/id311447284) - [iForest - Trees & Bushes](https://appshunter.io/ios/app/iforest-trees-and-bushes/id371638804) - [iGarten](https://appshunter.io/ios/app/igarten/id405252834) - [Note-CH](https://appshunter.io/ios/app/note-ch/id405255837) - [iPflanzen](https://appshunter.io/ios/app/ipflanzen/id416983587) All apps by Garzotto GmbH: https://appshunter.io/developer/291676871 ## Related topics [fifth harmony](https://appshunter.io/ios/topics/fifth-harmony) --- *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 2026-08-24.*