git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@4788 c06c8d41-db1a-0410-9941-cceddc491573
GRIODTWHFS4UV4ZKPP4RDHMPYYRUWX3H3JA3ZBINCKADKVEP5U3QC
5JS3QSE3EIXSBVI4DATH2EIFD7QN3POAFEUM7MK4NRMPH5JOPAAQC
BBQWA33DPXWEDYOOPO45VAYD4JQDZQVMZSEJ4RUI5LLC733IMIIQC
K2CS6TCX2NDVL2ASEHGP4J4K4IJ6FP3ANNKTSIWVG43HPYSBX6ZQC
LJK4ZQATLSB4MKZG3ARZX5V6RFGTN3NLCN6GTCUGJQKU26SOXMUAC
// won't sing if either of you silenced, or it's friendly or confused