pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7969-21433_Cuckoo_Sett_tune_6.ps) >>/Users/jc/w/tmp/Tune-7969-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP2/21433_Cuckoo_Sett_tune_6.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-7969-21433_Cuckoo_Sett_tune_6.abc 874 ABC music file with the extracted tune(s)
Tune-7969-21433_Cuckoo_Sett_tune_6.ps 34320 PostScript
Tune-7969-21433_Cuckoo_Sett_tune_6.txt 874 Plain-text file with the extracted tune(s)
Tune-7969-get.log 4978 Log file, useful mostly for debugging
Tune-79691-get.log 6155 Log file, useful mostly for debugging
Tune-79692-Kerr_MM4-V2.abc 148 ABC music file with the extracted tune(s)
Tune-79692-Kerr_MM4-V2.ps 6 PostScript
Tune-79692-Kerr_MM4-V2.txt 148 Plain-text file with the extracted tune(s)
Tune-79692-get.log 4014 Log file, useful mostly for debugging
Tune-79693-Jean_Henry_dAnglebert_PdC1.abc 163 ABC music file with the extracted tune(s)
Tune-79693-Jean_Henry_dAnglebert_PdC1.ps 6 PostScript
Tune-79693-Jean_Henry_dAnglebert_PdC1.txt 163 Plain-text file with the extracted tune(s)
Tune-79693-get.log 4450 Log file, useful mostly for debugging
Tune-79695-get.log 5888 Log file, useful mostly for debugging
Tune-79699-get.log 4030 Log file, useful mostly for debugging
These files should be available for 24 hours.