pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-9857-Tit_bitt.ps) >>/Users/jc/w/tmp/Tune-9857-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/Thompson/Tit_bitt.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-9857-Tit_bitt.abc 387 ABC music file with the extracted tune(s)
Tune-9857-Tit_bitt.ps 32957 PostScript
Tune-9857-Tit_bitt.txt 387 Plain-text file with the extracted tune(s)
Tune-9857-get.log 4366 Log file, useful mostly for debugging
Tune-98571-get.log 4770 Log file, useful mostly for debugging
Tune-98571-v3tune.abc 143 ABC music file with the extracted tune(s)
Tune-98571-v3tune.pdf 2217 Portable Data Format
Tune-98571-v3tune.ps 6 PostScript
Tune-98571-v3tune.txt 143 Plain-text file with the extracted tune(s)
Tune-98574-get.log 5769 Log file, useful mostly for debugging
Tune-98575-get.log 7974 Log file, useful mostly for debugging
Tune-98577-get.log 4055 Log file, useful mostly for debugging
Tune-98577-newpage.abc 145 ABC music file with the extracted tune(s)
Tune-98577-newpage.ps 6 PostScript
Tune-98577-newpage.txt 145 Plain-text file with the extracted tune(s)
Tune-98578-get.log 9207 Log file, useful mostly for debugging
Tune-98579-get.log 4014 Log file, useful mostly for debugging
These files should be available for 24 hours.