pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-6175-Miss_Stewart_of_Grantullys_strathspey-A-16-3.ps) >>/Users/jc/w/tmp/Tune-6175-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/abc/strathspey/Miss_Stewart_of_Grantullys_strathspey-A-16-3.abc

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Tune-6175-Miss_Stewart_of_Grantullys_strathspey-A-16-3.abc 550 ABC music file with the extracted tune(s)
Tune-6175-Miss_Stewart_of_Grantullys_strathspey-A-16-3.ps 38155 PostScript
Tune-6175-Miss_Stewart_of_Grantullys_strathspey-A-16-3.txt 550 Plain-text file with the extracted tune(s)
Tune-6175-get.log 5208 Log file, useful mostly for debugging
Tune-61754-get.log 3293 Log file, useful mostly for debugging
Tune-61754-tommaguiresfancy.abc 399 ABC music file with the extracted tune(s)
Tune-61754-tommaguiresfancy.txt 399 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.