pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-1517-CampbellsFancy.ps) >>/Users/jc/w/tmp/Tune-1517-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/Scotland/CampbellsFancy.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-1517-CampbellsFancy.abc 2409 ABC music file with the extracted tune(s)
Tune-1517-CampbellsFancy.ps 53644 PostScript
Tune-1517-CampbellsFancy.txt 2409 Plain-text file with the extracted tune(s)
Tune-1517-get.log 4949 Log file, useful mostly for debugging
Tune-15172-ScotlandsGardens.abc 1683 ABC music file with the extracted tune(s)
Tune-15172-ScotlandsGardens.pdf 41620 Portable Data Format
Tune-15172-ScotlandsGardens.ps 46622 PostScript
Tune-15172-ScotlandsGardens.txt 1683 Plain-text file with the extracted tune(s)
Tune-15172-get.log 7338 Log file, useful mostly for debugging
Tune-15173-Lord_Lovats_Lament.abc 1261 ABC music file with the extracted tune(s)
Tune-15173-Lord_Lovats_Lament.pdf 28398 Portable Data Format
Tune-15173-Lord_Lovats_Lament.ps 41822 PostScript
Tune-15173-Lord_Lovats_Lament.txt 1261 Plain-text file with the extracted tune(s)
Tune-15173-get.log 5921 Log file, useful mostly for debugging
Tune-15176-get.log 1434 Log file, useful mostly for debugging
These files should be available for 24 hours.