pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6283-187.ps) >>/Users/jc/w/tmp/Tune-6283-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EverydaySongBook/187=the_Tomtit-V2.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_6283.log 263311 Log file, useful mostly for debugging
Coll_62830.log 396752 Log file, useful mostly for debugging
Coll_62833.log 151191 Log file, useful mostly for debugging
Coll_62835.log 146029 Log file, useful mostly for debugging
Coll_62836.log 522297 Log file, useful mostly for debugging
Coll_62837.log 502106 Log file, useful mostly for debugging
Coll_62839.log 26114 Log file, useful mostly for debugging
Form_62834.log 829 Log file, useful mostly for debugging
Tune-6283-187.abc 1176 ABC music file with the extracted tune(s)
Tune-6283-187.ps 34653 PostScript
Tune-6283-187.txt 1176 Plain-text file with the extracted tune(s)
Tune-6283-get.log 10400 Log file, useful mostly for debugging
Tune-62830-10781_CRAIGELLACHIE_BRIDGE-001.svg 52985 Scalable Vector Graphics format
Tune-62830-10781_CRAIGELLACHIE_BRIDGE.abc 1120 ABC music file with the extracted tune(s)
Tune-62830-10781_CRAIGELLACHIE_BRIDGE.txt 1120 Plain-text file with the extracted tune(s)
Tune-62830-get.log 4507 Log file, useful mostly for debugging
Tune-62833-get.log 3723 Log file, useful mostly for debugging
These files should be available for 24 hours.