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midicmd="abc2midi /u/guests/jc/w/tmp/Tune-88272-melnets_big_abc_file.abc -v -o /u/guests/jc/w/tmp/Tune-88272-melnets_big_abc_file.midi >>/u/guests/jc/w/tmp/Tune-88272-get.log 2>&1" returned status 11.

Error exit status 11; here are some files to check:
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filesizedescription
Tune-88272-get.log 3825 Log file, useful mostly for debugging
Tune-88272-melnets_big_abc_file.abc 1860 ABC music file with the extracted tune(s)
Tune-88272-melnets_big_abc_file.txt 1860 Plain-text file with the extracted tune(s)
These files should be available for 24 hours.