Comparison

Harmonics Practice vs Thelonious

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

Head to head
About

Harmonics Practice

Features
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Harmonics Practice helps brass players and other wind instrumentalists develop control, intonation, and awareness of the harmonic series. It plays a fundamental tone and harmonics which relative volume you can adjust. Play against the drone and check your tuning so that you are in perfect match with the harmonics. For best result use speakers or headphones. With the built-in sound engine, you can: - select the relative strength of each harmonic of the reference tone - make harmonics' volume undulate automatically and move in panning (left to right) - add small 'bumps' to give rhythmic diversity for the reference drone - select reference note, its octave and tuning Ideal for developing perfect intonation in chords. Designed for students, teachers, and professionals who want a focused way to practicing your tone and intonation.

About

Thelonious

This app simplifies music theory with visual aids for keys, chords, and scales. It helps users understand harmony and apply concepts to real playing, including guitar-specific features.

Highlights
  • Visual layouts for keys, chords, and scales
  • Diatonic chord and key relationship study
  • Chord progressions and harmonic movement
  • Guitar mode charts
  • CAGED system material
  • Relative minor and dominant chord learning
Features
Read full description

Thelonious is a music theory app designed to help you understand keys, chords, scales, and harmony through clear, visual layouts. Explore major keys, review scale notes, and study diatonic chords in a format built for both learning and quick reference. Thelonious connects theory to real playing with chord progressions, guitar mode charts, and CAGED system material. Use Thelonious to: • Explore major keys and their scale notes • Understand diatonic chords and key relationships • Learn relative minor and dominant chords • Study chord progressions and harmonic movement • View guitar modes and CAGED chord charts Whether you’re learning the fundamentals or deepening your understanding of harmony, Thelonious makes music theory easier to read, understand, and apply.

Screenshots

Harmonics Practice4 screens
Thelonious4 screens

Verdict

The call

Harmonics Practice and Thelonious are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Harmonics Practice versus Thelonious: the parameters behind the verdict, then further details
ParameterHarmonics PracticeThelonious
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size31 MB34 MB
Age rating4+4+
DeveloperTarmo JohannesRobert Natale

In-app purchases

None

Harmonics Practice

No in-app purchases

None

Thelonious

No in-app purchases

Questions

Is Harmonics Practice free?
Harmonics Practice is free to download, with no in-app purchases.
Is Thelonious free?
Thelonious is free to download, with no in-app purchases.
Do Harmonics Practice or Thelonious have ads?
Neither Harmonics Practice nor Thelonious shows ads.

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