TapNoiseTapNoise Song mode advances through a melody one note per key press. Your typing supplies the timing; the tune supplies the note order. That is different from a MIDI keyboard where you choose pitches by pressing particular keys.
Start the musical mode
Choose 8-bit, Piano or Kalimba as the sound theme. Then choose a song in the menu’s Song mode row or Settings › Sounds › Type a song.
Type a harmless paragraph and listen to the rhythm your hands create. A pause of five seconds restarts the song. Choose Off in the same picker to return to ordinary theme playback.
Know what is not being played
You are not writing a musical score by typing particular letters. A different letter can still advance the same next note. Normal typing therefore shapes pacing rather than providing a conventional piano layout.
Song mode is a playful feedback feature, not a DAW controller, a MIDI recording workflow or a substitute for an instrument when you need deliberate note choice.
Choose the task accordingly
It may be fun for a short writing exercise, but the melody can compete with speech or careful reading. Lower the volume or return to a simpler theme whenever the sound becomes the main task.
For ordinary sound selection, see theme controls. For keeping audio in proportion to work, balancing typing sounds with music offers a simple comparison method.
Sources: TapNoise Song mode rules, musical theme selection.