pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-8049-FlocktonsHornpipe.ps) >>/Users/jc/w/tmp/Tune-8049-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/ryan-cole/Tunes/FlocktonsHornpipe.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-8049-FlocktonsHornpipe.abc 497 ABC music file with the extracted tune(s)
Tune-8049-FlocktonsHornpipe.ps 38511 PostScript
Tune-8049-FlocktonsHornpipe.txt 497 Plain-text file with the extracted tune(s)
Tune-8049-get.log 4668 Log file, useful mostly for debugging
Tune-80493-get.log 4163 Log file, useful mostly for debugging
Tune-80495-24CountryDances_1804_Thompson.abc 168 ABC music file with the extracted tune(s)
Tune-80495-24CountryDances_1804_Thompson.txt 168 Plain-text file with the extracted tune(s)
Tune-80495-get.log 3538 Log file, useful mostly for debugging
Tune-80496-24CountryDances_1792_Thompson.abc 166 ABC music file with the extracted tune(s)
Tune-80496-24CountryDances_1792_Thompson.ps 6 PostScript
Tune-80496-24CountryDances_1792_Thompson.txt 166 Plain-text file with the extracted tune(s)
Tune-80496-get.log 4390 Log file, useful mostly for debugging
Tune-80497-get.log 5993 Log file, useful mostly for debugging
Tune-80499-CaledonianMusicalRepository_1806.abc 168 ABC music file with the extracted tune(s)
Tune-80499-CaledonianMusicalRepository_1806.ps 6 PostScript
Tune-80499-CaledonianMusicalRepository_1806.txt 168 Plain-text file with the extracted tune(s)
Tune-80499-get.log 4568 Log file, useful mostly for debugging
These files should be available for 24 hours.