Show chords on a piano keyboard to see how to play it.
From notes, showchord produces SVG image files representing a two-scaled keyboard with marks on it.
- Draw an empty 2 octaves piano keyboard - eventually with a title - SVG output format
- Draw any chord you can imagine (on a 2 octave keyboard) by giving note names. The chord is represented by round marks on the keys
- Print a title above the keyboard
- Print note names below the marked keys
- Export to bitmap (PNG) file (by default, resulting is stored in SVG files)
- Force output filename prefix
- Provide zoom value to change the drawing size
- Generate many chords at once from informations taken from a stream