pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-81357-Mrs_Captain_Stewarts_Strathspey.ps) >>/Users/jc/w/tmp/Tune-81357-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/RobertPetrie/Mrs_Captain_Stewarts_Strathspey.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Tune-81357-20671_.abc 50 ABC music file with the extracted tune(s)
Tune-81357-20671_.pdf 2217 Portable Data Format
Tune-81357-20671_.ps 6 PostScript
Tune-81357-20671_.txt 50 Plain-text file with the extracted tune(s)
Tune-81357-Mrs_Captain_Stewarts_Strathspey.abc 572 ABC music file with the extracted tune(s)
Tune-81357-Mrs_Captain_Stewarts_Strathspey.ps 36035 PostScript
Tune-81357-Mrs_Captain_Stewarts_Strathspey.txt 572 Plain-text file with the extracted tune(s)
Tune-81357-get.log 11150 Log file, useful mostly for debugging
These files should be available for 24 hours.