FastChords has five modes, each supported by a calculator-like tool:
 The Chords mode, used to produce chords on the piano keyboard given chord symbols. Supported by the chords calculator.
The Table mode, used to collect and manipulate the chords and melody notes of a song. Supported by the table tool.
The Melody mode, used to enter melody notes and display scales. Supported by the melody tool.
| • | The Player Mode, used to play songs and to enter the rhythmic value of melody notes. |
| • | The Midi Mode, used to record midi performances. |
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