Provides a quick and easy way to hear a pitch for any written note or piano key you need. An indispensable tool for a cappella groups, and instrumentalists who often play in ledger lines or alternate clefs.

Easily transpose between instruments. The concert pitch (piano key) remains the same as you select the different instrument ‘keys’ ie: Bb Trumpet, Eb Alto Saxophone. The written notes will change to reflect what to play on the instrument.

If you don’t read music well and need to learn a melody or harmony part, you can simply match what’s written. (Make sure you know about key signatures.)

This is exactly what you need if you would like to learn the relationship between notation in various clefs and the piano.

• Play the piano and see the notation and note name for what you are playing
• Choose between Treble, Alto, Tenor, and Bass clefs
• Click the staff and see and hear the piano key play

Selecting a Pitch:
Using the Staff: Simply click and drag up and down on the staff to select the note, drag right for sharp, left for flat, or drag up and down right or left of the note for constant sharps and flats.
Using the Piano: Scroll to move the keyboard, click to play notes, click & hold then drag to glissando. When you glissando up the keyboard, notes will be notated with sharps, when you glissando down, notes will be notated with flats. When you click specific notes they will be notated in the most common accidental for that note. ie: Eb rather than D#, F# rather than Gb.
Use the up and down arrows to move chromatically up and down without clicking the music staff or piano keyboard.

What’s New

Version 2.5

Support for Dark Appearance. Bug fixes and performance improvements.


Patrick Kelly
26.9 MB

macOS 10.14 or later, 64-bit processor



Age Rating
Rated 4+
© 2009 - 2019 Patrick Q. Kelly All Rights Reserved.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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