Log Message:
Update abcmidi to version 20060422.
Apply security patches from Debian.

Changes include:

(Mike Scott) The 'y' spacing character used by Barfly and
abcm2ps was being silently dropped in parseabc.c. Added
support for this (including a length specifier - is this
used by anything?) to parseabc.c and abc2abc.c; stubs in
the other modules including yaps mean they behave as before.

http://lists.debian.org/debian-security-announce/debian-security-announce-2006/msg00127.html