pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-23755-Skardens_Humour_1.ps) >>/Users/jc/w/tmp/Tune-23755-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Skardens_Humour_1.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-23755-CSGBT_1794-V1.abc 153 ABC music file with the extracted tune(s)
Tune-23755-CSGBT_1794-V1.pdf 2215 Portable Data Format
Tune-23755-CSGBT_1794-V1.ps 6 PostScript
Tune-23755-CSGBT_1794-V1.txt 153 Plain-text file with the extracted tune(s)
Tune-23755-Skardens_Humour_1.abc 456 ABC music file with the extracted tune(s)
Tune-23755-Skardens_Humour_1.ps 33078 PostScript
Tune-23755-Skardens_Humour_1.txt 456 Plain-text file with the extracted tune(s)
Tune-23755-Wedding_Ring_THO4_029_The-001.svg 19592 Scalable Vector Graphics format
Tune-23755-Wedding_Ring_THO4_029_The.abc 477 ABC music file with the extracted tune(s)
Tune-23755-Wedding_Ring_THO4_029_The.txt 477 Plain-text file with the extracted tune(s)
Tune-23755-get.log 19551 Log file, useful mostly for debugging
These files should be available for 24 hours.