Comparison

MPC Progression Builder vs Soloist Harmonium

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MPC Progression Builder

Create and export musical chord progressions for your music production workflow. Features include keyboard, scale-based, and circle of fifths modes for building and refining harmonic ideas. Export directly to MPC devices or as standard MIDI files for use in any DAW.

Highlights
  • Virtual keyboard for direct chord input
  • Build progressions with up to 16 chords
  • Scale-based chord suggestions
  • Circle of Fifths progression builder
  • MPC-ready .progression file export
  • Standard MIDI file export
  • Instant playback and auditioning
Features
Read full description

Progression Builder for MPC is a powerful yet intuitive tool for producers who want to build rich, musical chord progressions and send them straight into their workflow. Designed with AKAI MPC users in mind, it also exports to standard MIDI files, making it equally useful for DAW producers, composers, and beatmakers alike. Build your progressions your way: - Keyboard Mode: Tap out chords directly on the built-in virtual keyboard and hear them instantly. - Progression Builder: Arrange up to 16 chords into full progressions you can audition, refine, and export. - Scale-Based Mode: Explore chords that naturally fit your chosen scale — perfect for clean harmonic flow. - Circle of Fifths Mode: Craft progressions using classic relationships that sound balanced and musical. Every chord pad can be customized, rearranged, or saved for later — giving you a flexible sketchpad for harmonic ideas. Whether you’re working on a soulful lo-fi loop, a jazz-inspired sequence, or a cinematic score, Progression Builder for MPC helps you find the right chords fast. Export your ideas with ease: - MPC-Ready Export: Generate .progression files compatible with MPC Live, X, One, and Force. - MIDI Export: Drop your chords into any DAW, sampler, or synth. - Instant Playback: Audition and tweak voicings, inversions, and timing before you export. - Clean, efficient, and tuned for real production environments, Progression Builder for MPC bridges the gap between music theory and creative flow — helping you stay in the zone.

About

Soloist Harmonium

Features
Read full description

Build a steadier harmonium practice around your own Sa. FIND YOUR SA Sing, hum, or play one comfortable, steady note. The confidence-gated setup changes Sa only when microphone evidence is clear. If the evidence is unclear, Soloist Harmonium keeps your current choice and invites you to retry or choose Sa manually. PLAY A RESPONSIVE INSTRUMENT Practice on a sampled-reed keyboard with bass, main, and treble controls, coupler, assisted or manual bellows, key sizing, octave navigation, transpose, and tuning options. Your saved Sa follows the keyboard labels and reference drone. LEARN WITH HONEST FEEDBACK Work through swara foundations and structured alankar patterns. Hear a phrase, try it, then review pitch feedback. A take with too little reliable evidence receives no score instead of a guess. READ NOTES YOUR WAY Switch relative sargam labels between Roman, Devanagari, and Gurmukhi. The labels move with the Sa you selected. BUILD A PRACTICE HABIT Use the Sa-pitched drone, a quiet practice bed, local attempt history, pitch traces, Riyaz Sadhana, guilt-free Vishram rest days, and on-device practice guidance. No account is required for setup or foundation practice. PRIVACY BY DESIGN Microphone listening starts only when you ask for it. Audio and pitch traces stay on your device and are not uploaded. Optional cloud refinement is off until you enable it and sends bounded practice aggregates, never audio. Soloist Harmonium offers optional monthly and yearly auto-renewing subscriptions plus a Lifetime Family purchase. Exact localized purchase details, renewal terms, Family Sharing availability and eligibility appear in the App Store before purchase. Restore purchases in Settings. Support: https://playsoloist.com/harmonium/support Privacy: https://harmonium.keenshift.ai/privacy Terms of Use: https://harmonium.keenshift.ai/terms

Screenshots

MPC Progression Builder3 screens
Soloist Harmonium4 screens

Verdict

The call

The clearest difference is price: Soloist Harmonium at Free against MPC Progression Builder's $2.99. MPC Progression Builder's advantage is in-app purchases (none vs 2) and iOS requirement (16.0 vs 18.0). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Soloist Harmonium is free to download; MPC Progression Builder costs $2.99 up front. Soloist Harmonium sells 2 in-app purchases, starting at $4.99 per month. MPC Progression Builder asks for nothing beyond the download.

Scorecard3 real differences · 6 level
MPC Progression Builder versus Soloist Harmonium: the parameters behind the verdict, then further details
ParameterMPC Progression BuilderSoloist Harmonium
Price$2.99Free — better
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequency—Every 8 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.0 — better18.0
Further details — not scored
Size2 MB10 MB
Age rating4+4+
DeveloperDavid JonesMitaanshu Agarwal

In-app purchases

None

MPC Progression Builder

No in-app purchases

2 purchases

Soloist Harmonium

Subscriptions2
  • Harmonium Monthl7 Days trial$4.991 Month
  • Harmonium Yearl7 Days trial$39.991 Year

Questions

Is MPC Progression Builder free?
MPC Progression Builder costs $2.99, with no in-app purchases.
Is Soloist Harmonium free?
Soloist Harmonium is free to download, with in-app purchases available.
Do MPC Progression Builder or Soloist Harmonium have ads?
Neither MPC Progression Builder nor Soloist Harmonium shows ads.

Other comparisons