pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-230-10472_Female_Rake.ps) >>/Users/jc/w/tmp/Tune-230-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP1/10472_Female_Rake.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Coll_2301.log 461210 Log file, useful mostly for debugging
Coll_23035.log 475211 Log file, useful mostly for debugging
Coll_23039.log 351316 Log file, useful mostly for debugging
Coll_23053.log 469611 Log file, useful mostly for debugging
Coll_2306.log 447210 Log file, useful mostly for debugging
Coll_23068.log 1520149 Log file, useful mostly for debugging
Coll_2307.log 296011 Log file, useful mostly for debugging
Coll_23080.log 355471 Log file, useful mostly for debugging
Coll_23087.log 454209 Log file, useful mostly for debugging
Coll_23091.log 476607 Log file, useful mostly for debugging
Find_23070.log 1679 Log file, useful mostly for debugging
Sess-23037.log 120 Log file, useful mostly for debugging
Tune-230-10472_Female_Rake.abc 613 ABC music file with the extracted tune(s)
Tune-230-10472_Female_Rake.ps 34256 PostScript
Tune-230-10472_Female_Rake.txt 613 Plain-text file with the extracted tune(s)
Tune-230-get.log 4718 Log file, useful mostly for debugging
Tune-23000-get.log 91398 Log file, useful mostly for debugging
Tune-23009-get.log 4455 Log file, useful mostly for debugging
Tune-2301-get.log 8966 Log file, useful mostly for debugging
Tune-23014-get.log 5707 Log file, useful mostly for debugging
Tune-23019-get.log 10353 Log file, useful mostly for debugging
Tune-23024-get.log 5178 Log file, useful mostly for debugging
Tune-23027-get.log 4737 Log file, useful mostly for debugging
Tune-23029-get.log 5477 Log file, useful mostly for debugging
Tune-23031-get.log 7931 Log file, useful mostly for debugging
Tune-23042-get.log 6666 Log file, useful mostly for debugging
Tune-23046-get.log 4986 Log file, useful mostly for debugging
Tune-23050-get.log 9205 Log file, useful mostly for debugging
Tune-23051-get.log 1573 Log file, useful mostly for debugging
Tune-23064-get.log 9861 Log file, useful mostly for debugging
Tune-23065-get.log 4684 Log file, useful mostly for debugging
Tune-2308-get.log 4617 Log file, useful mostly for debugging
Tune-23085-get.log 4124 Log file, useful mostly for debugging
Tune-23098-get.log 270148 Log file, useful mostly for debugging
These files should be available for 24 hours.