pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-7819-30342_Henriettas_Waltz.ps) >>/Users/jc/w/tmp/Tune-7819-get.log 2>&1" returned status 256
http://john-chambers.us/~jc/music/book/EliasHowe/MusiciansCompanionP3/30342_Henriettas_Waltz.abc

Error exit status 256; here are some files to check:
[P=tuneget V=1/1 B=0 scale=0.70 512x512 PNG]
filesizedescription
Coll_78196.log 461210 Log file, useful mostly for debugging
Form_78194.log 998 Log file, useful mostly for debugging
Form_78197.log 973 Log file, useful mostly for debugging
Form_78199.log 987 Log file, useful mostly for debugging
Tune-7819-30342_Henriettas_Waltz.abc 709 ABC music file with the extracted tune(s)
Tune-7819-30342_Henriettas_Waltz.ps 32787 PostScript
Tune-7819-30342_Henriettas_Waltz.txt 709 Plain-text file with the extracted tune(s)
Tune-7819-get.log 4971 Log file, useful mostly for debugging
Tune-78195-get.log 6186 Log file, useful mostly for debugging
These files should be available for 24 hours.