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Practice Farm: Etudes, Any Key

by Nicholas Mahon

  • Music
  • Paid
  • Small & simple · 85
View on the App Store
Rating
5.0
4 ratings · US storefront
Top 97%among 99 Music apps
Last update
Oct 6, 2026
Version 1.13
Size
211 MB
Category
Music
Tracked since
Oct 10, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Practice Farm is a library of étude books, orchestral excerpts and Bach, rewritten on the spot for the instrument you play. Choose your instrument once. Every page comes out in your clef, in your range, in any key you want, with the fingerings on the notes and a band to play along with.

YOUR INSTRUMENT, OVER THE MUSIC
Your instrument is drawn above the page and moves with every note as the music plays: a trombone's slide, the valves of brass and horn, the keys of clarinets, oboe, English horn, bassoon, flutes and saxophones, the fingerboards of the four strings, and two or four mallets over glockenspiel, xylophone, marimba and vibraphone. Tap the hand in the panel's corner, tap a note, and choose your own fingering or position. The page prints your choice and the panel plays it, study by study. Mark any passage, keep it as a clip and loop it. Tap a tempo or expression word on the page and its meaning opens, in eleven languages.

WHAT'S ON THE SHELF

  • 307 studies from Arban's Complete Method, by chapter
  • New: Weissenborn's bassoon studies, Ferling for oboe, Rose for clarinet, Andersen for flute, Concone for bass and for voice
  • Bordogni, Kopprasch, Blazhevich, Slama, Bléger, Müller, Cornette, Belcke
  • Bach's cello suites, sonatas and partitas, and Telemann's fantasias
  • 414 orchestral excerpts for 13 instruments
  • 275 traditional tunes
  • 365 Bach chorales in four voices

1,810 studies in 43 books, and room for your own.

WRITTEN FOR YOU
No more reading Bordogni in the wrong clef or Kopprasch out of your range. Tell Practice Farm what you play and every study is rewritten for it: a tuba gets bass clef and valve numbers, a trumpet gets its own transposition, a cellist gets string positions. 39 instruments, each with its own clefs, range and fingering system.

ANY KEY
Move a study up a semitone, down an octave, or into any key you name. Or take it around the circle of fourths or fifths and get one page with all twelve keys on it, with rest bars between them.

PLAY ALONG
Drums with a groove. A drone that follows the study when it changes key. And on the 76 studies that were printed with a piano part, the pianist. Set a tempo by tapping, get counted in, take the repeats.

BACH CHORALES
Four parts: soprano, alto, tenor and bass. Choose an instrument for each one, a trumpet on the soprano, a horn on the alto, a trombone and a tuba below, and the chorale is transposed on the spot, each part in the right clef and key for the instrument that plays it. Change an instrument and the part changes with it. Read all four parts on one iPad or split the score across two. A ready-made quartet for a studio class, a section rehearsal, or colleagues each reading their own part.

YOUR OWN MUSIC
Import any MusicXML file and it works like every other study. Export any page as a PDF for a student or a teacher.

THE INSTRUMENTS
Violin, viola, cello, double bass, guitar, bass guitar, ukulele, flute, piccolo, alto flute, descant and treble recorders, oboe, English horn, clarinets in B flat, A and E flat, bass clarinet, bassoon, contrabassoon, soprano to baritone saxophones, trumpet, French horn, alto, tenor and bass trombones, euphonium, tuba, soprano, alto, tenor and bass voice, glockenspiel, xylophone, marimba and vibraphone.

WORKS OFFLINE
The whole library is inside the app. Every study, every key, every instrument and the band all work with no internet connection, on a plane or in a practice room with no signal. No account and no subscription. One purchase, for iPad and iPhone.

In English, French, German, Italian, Spanish, Portuguese, Dutch, Polish, Japanese, Korean and Simplified Chinese.

What’s new

Release notes for the latest version, as written by the developer.

v1.13

Practice Farm 1.13.

  • Your instrument, over the music. A trombone's slide, valves, clarinet and flute keys, a violin's fingerboard or mallets over a marimba are drawn above the page and move with every note.
  • Choose your own fingerings. Tap the hand in the panel's corner, tap a note, pick the position or fingering. The page prints it and the panel plays it.
  • Mark a passage of any study, keep it as a clip and loop it.
  • Tempo and expression words explained in eleven languages. Tap a word on the page.
  • Seven new books: Weissenborn bassoon studies (Op. 8, Books 1 and 2), Ferling's 48 Studies for Oboe, Rose's 40 Studies for Clarinet, Andersen's 24 Studies for Flute, Concone's lessons for bass and for voice.

Rank history

Daily position in the Japan charts. #1 is at the top.

Best rank
#11
Current rank
#72
Days charting
4 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

85/100

Small & simple

  • Developer size70% · 25

    Developer: 2 apps on the charts

  • Audience size100% · 20

    Ratings: 4

  • App size25% · 10

    Size: 211 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #2, 21 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 1.13LatestReleased Oct 6, 2026