pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-55899-20591_Dorrs_Retreat.ps) >>/Users/jc/w/tmp/Tune-55899-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EliasHowe/MusiciansCompanionP2/20591_Dorrs_Retreat.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_55899.log 263256 Log file, useful mostly for debugging
Find_55899.log 1455 Log file, useful mostly for debugging
Tune-55899-20591_Dorrs_Retreat.abc 628 ABC music file with the extracted tune(s)
Tune-55899-20591_Dorrs_Retreat.ps 34435 PostScript
Tune-55899-20591_Dorrs_Retreat.txt 628 Plain-text file with the extracted tune(s)
Tune-55899-get.log 4815 Log file, useful mostly for debugging
These files should be available for 24 hours.