pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-79686-Waltz_Rowenas.ps) >>/Users/jc/w/tmp/Tune-79686-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/england/Waltz_Rowenas.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-79686-Waltz_Rowenas.abc 1228 ABC music file with the extracted tune(s)
Tune-79686-Waltz_Rowenas.ps 41046 PostScript
Tune-79686-Waltz_Rowenas.txt 1228 Plain-text file with the extracted tune(s)
Tune-79686-get.log 8519 Log file, useful mostly for debugging
These files should be available for 24 hours.