pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-17721-10522_Burbanks_Air.ps) >>/Users/jc/w/tmp/Tune-17721-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/EliasHowe/MusiciansCompanionP1/10522_Burbanks_Air.abc

Error exit status 256; here are some files to check:
[get.cgi V=1/1 B=0 scale=0.65 512x512 PNG]
filesizedescription
Tune-17721-10522_Burbanks_Air.abc 554 ABC music file with the extracted tune(s)
Tune-17721-10522_Burbanks_Air.ps 33177 PostScript
Tune-17721-10522_Burbanks_Air.txt 554 Plain-text file with the extracted tune(s)
Tune-17721-get.log 6209 Log file, useful mostly for debugging
These files should be available for 24 hours.