Documents (abcparser)

ABCp Scanner	Description of how the tokens are extracted from the text
ABCp Tokens	Description of tokens informations

References

There are many tutorials on the net with description of ABC syntax. Here is a list of the ones I used while writing ABCp

Abc 2.0 draft standard	The main reference
Abc 1.6
Abc 1.7
abcm2ps	features.txt
abc2midi
abctab2ps	For tablatures
John Chambers's tutorial	the staves, Braces, brackets and gchord parameters of clefs are descibed here
http://abcnotation.org.uk/