User Manual

Key

The key section keys you adjust how the chords appear by default as well as how the key chooser works.

Theoretical Keys

The key chooser or slider contains the most common keys by default. If you would like to enable less commonly used keys, or keys that contain more than 7 sharps or flats, enable this setting. Default is off.

Transpose Control

Determines the user interface preference for key selection. Options include:

  • Buttons (adjecent) displays keys that are adjacent to each other according to the circle of fifths. (Default)
  • Buttons (chromatic) displays keys that are in chromatic/alphabetic order.
  • Slider uses the original OnSong slider interface control.

Transposition Enabled

This switch determines if transposition is enabled by default at the system level. Default is on.

OnSong 2026 — Last Updated on December 16, 2025