You can find instructions here: Making Music with ABC Plus
Stephen Merrony has written a great !
quick reference!
The abc music standard 2.1
describes the current standard of abc notation.
Jef Moine's abcm2ps/abc2svg parameters parameters describes the parameters that can be set within 'abc' files usually with prefix '%%'.
If you want to learn more, you can find a lot of material at learn abc
Chopro notation is used to place the guitar chords in the correct place above the lyrics in simple song lyrics. Instructions for Chopro notation are available here: Chordii 4.3 User Guide
There are also custom extensions, including the ability to add chord diagrams below the text.
| ABC notation | ||
|---|---|---|
| X: | index | |
| T: | title | |
| C: | composer | |
| O: | origin (country) | |
| R: | rhythm | |
| L: | unit note length | |
| M: | meter | |
| K: | key | |
| S: | source | |
| the following fields are nonstandard-ABC: | ||
| Y: | youtube or audio link | |
| Chopro notation | ||
|---|---|---|
| title: | ||
| subtitle: | singer/band/composer | |
| the following fields are nonstandard-chopro: | ||
| #O: | origin (country) | |
| #R: | rhythm | |
| #Y: | youtube or audio link | |