pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-87811-251_Derwentwaters_Fareweel.ps) >>/Users/jc/w/tmp/Tune-87811-get.log 2>&1" returned status 256
http://roaringjelly.org/~jc/music/book/BonAccordCollection/251_Derwentwaters_Fareweel.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-87811-251_Derwentwaters_Fareweel.abc 801 ABC music file with the extracted tune(s)
Tune-87811-251_Derwentwaters_Fareweel.ps 34416 PostScript
Tune-87811-251_Derwentwaters_Fareweel.txt 801 Plain-text file with the extracted tune(s)
Tune-87811-88A_NapoleonCrossingTheRhine_D.abc 550 ABC music file with the extracted tune(s)
Tune-87811-88A_NapoleonCrossingTheRhine_D.gif 0 Graphics Interchange Format, the proprietary scan-line picture format
Tune-87811-88A_NapoleonCrossingTheRhine_D.ps 33980 PostScript
Tune-87811-88A_NapoleonCrossingTheRhine_D.txt 550 Plain-text file with the extracted tune(s)
Tune-87811-get.log 12246 Log file, useful mostly for debugging
These files should be available for 24 hours.