pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-78408-30451_Cuckoo.ps) >>/Users/jc/w/tmp/Tune-78408-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EliasHowe/MusiciansCompanionP3/30451_Cuckoo.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.55 512x512 PNG]
filesizedescription
Form_78408.log 828 Log file, useful mostly for debugging
Tune-78408-30451_Cuckoo.abc 1479 ABC music file with the extracted tune(s)
Tune-78408-30451_Cuckoo.ps 40590 PostScript
Tune-78408-30451_Cuckoo.txt 1479 Plain-text file with the extracted tune(s)
Tune-78408-get.log 8147 Log file, useful mostly for debugging
These files should be available for 24 hours.