For adults · English and Japanese

IDOUDO app icon

IDOUDO

Movable-Do sight-reading practice across all 12 keys

IDOUDO is a practice app for quickly reading notes on the staff with movable Do in each key. Answer each displayed note using the Do, Re, Mi, Fa, Sol, La, and Ti buttons. When the key changes, the same position on the staff has a different movable-Do syllable. Practice this essential movable-Do skill repeatedly in all 12 keys.

View on the App Store
Single-note drill: correct answer with the Do–Ti buttonsSeventh-chord drill: movable-Do syllables and chord nameKey selection screen with personal bestsEar training: listen after Do-Mi-Sol and name the notesEar training: the staircase of answer buttonsMelody Shadowing: look at the score while the Do soundsMelody Shadowing: sing Canon in movable DoHome screen with the drill list and know-howHome screen: Ear Training and Melody Shadowing drills

Drills (Keys C and G are free in every drill)

  • Reading: 1 Note, 2 Notes, 1 Triad, 1 Seventh Chord
  • Ear training (from version 1.1): 2, 3, and 4 notes. Name the notes you hear in movable Do
  • Melody Shadowing (from version 1.1): Major sets 1 and 2, Minor set 1. Sing famous melodies in all 12 keys

More drills are coming.

Key features

  • Practice in all 12 keys
  • Treble and bass clefs, plus the alto clef used by viola
  • Note ranges for piano, guitar, violin, viola, cello, wind instruments, voice, and more
  • Fast 10-question rounds with average response time, mistakes, and personal-best records
  • Answer chord tones from bottom to top; results show the chord symbol and Roman-numeral degree
  • Up to 50 local profiles, Light and Dark Mode, English and Japanese

Pricing and privacy

Keys C and G are free in every drill. The other 10 keys can be unlocked permanently with a one-time in-app purchase for each drill. Starting with version 1.1, you can also choose All Drills, a subscription that unlocks every drill in all 12 keys (monthly with a 1-month free trial, or yearly; prices are shown in the app). No ads, no account registration; profiles and practice records are stored on your device.

Latest news

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