/usr/share/sounds/sf2/xgmap.bnk is in awesfx 0.5.1a-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# # XG BANK FILE FOR STATIC LOADINIG # include xgsfx.bnk include xgdrum.bnk