These are the standard .mu files I know about.  These appear to be
compatible with the Wilson compiler, decus-8-804 and not the simpler
format of decus-8-152. 

The Edinburgh music compiler and runtime were obtained from:
http://history.dcs.ed.ac.uk/archive/pdp8/ProgrammesAndManualsList.html

** The Binaries **

54.bin is built from 54.pal, the relatively hideous source code from
http://history.dcs.ed.ac.uk/archive/pdp8/54.txt

56.bin is a larger binary from http://history.dcs.ed.ac.uk/archive/pdp8/56.asc
It appears to be a memory dump of 54.bin after it has been run, but with additional code and data from locations 01600-04200.

61.1.bin is the binary from http://history.dcs.ed.ac.uk/archive/pdp8/61.1.asc
It is identical to 54.bin, except for the corruption of the "U" in the "MUSIC COMPILER/2" sign-on.

61.2.bin was from http://history.dcs.ed.ac.uk/archive/pdp8/61.2.asc
It was identical to 56.bin.

../maple.mu-pb
../music1.bin
../music2.bin
../music3.bin
These appear to be dumps of all of memory.  Each is different from the
others.

../muscmp2-pb is presumably the compiler binary.  Don't have source or
even know how to work the thing.

../musex-pb is the binary tape image of the music runtime.
../musex.bin is built from musex.pal, and is identical to ../musex-pb.
../musex.papb is the concatenation of the musex.pa and musex-pb into a
single paper tape image.

I've renamed the archived music files to match what they are supposed to be,
and added a comment to the front of most of them with more detail.

I have created muscmp2.pal from 54.pal, removing excessive blank lines,
adding a few comments, and suffixing it with the patch needed to create
a binary equivalent to muscmp2-pb.

asong.mu	Seemed to work
bachic.mu	Seemed to work
beamex.mu	Seemed to work
elevn4.mu	Fixed missing "("
fbumbl.mu	Prints "RANGE !" for everything 3 or 4 octaves up
jamrum.mu	Fixed several typos
lchica.mu	Seemed to work
ldanza.mu	Seemed to work
mendwm.mu	Fixed spurious "Q" before "$"
mozart.mu	Seemed to work
mzrt14.mu	Seemed to work
op130.mu 	Changed first change of key from '"=F' to '#=R'
rwaltz.mu	Seemed to work
tliebp.mu	Seemed to work
tli.mu   	Seemed to work

About Roland's tapes:
musex.bin matches musex-pb, so musex.pal is OK.
A newer version musex.new, includes operating instructions, but
  also a one line change.

maple.mu-pb starts with a copy of musex.bin.
maple.mu-pb is presumably some version of maple.mu. but we don't have source.

music1.bin music2.bin music3.bin all start out like 54.lst.
muscmp2-pb also starts out like 54.lst.
54.pal appears to be the correct "virgin" source for the compiler.

muscmp2-pb and music1.bin are identical.
music1.bin is bachic.mu, compiled.
music2.bin is unknown.
music3.bin is very similar to lchica.mu, compiled.