Virtual piano
A keyboard to tap, drag and play from the computer keys — three octaves, note names on the keys, a pedal to hold. The sound is computed in the browser; nothing is downloaded and it works without a connection.
C4
Tap, drag across, or play from the keyboard: A W S E D F T G Y H U J K
Dragging across the keys gives a glissando. On a computer the notes sit on A W S E D F T G Y H U J K — the row every music program uses.
Anotona does this for you
Photograph a page of sheet music or play the melody — Anotona finds the key, engraves the notes and transposes them into any other. Free.
See AnotonaEvery note on this page is computed, not typed in — following the rule that also makes F# major spell its seventh degree E#, not F.