It Takes Two — 21.7

Solution

Some of the module names hidden in the first grid intersect with one of their own authors in the second grid. Read the module names’ intersecting letters in reading order.

AMMIYTSTTEIRCDSOQOUAREIQNOKC
LFZO
PEIL
HKZOE
ANZRT
BIBGEB
EAKUREI
TIZZNNZ
MARFIOXMTURNHZIAEO
AUOTRRF
MRYEYAO
DSLTR
ASIMEIRHEBOO
RAWDILULOWYRNH
RCSOT
IKELIADSU
MA
IREDAELEHTWOLLOFE
SEASSHELLSH
AT

This reads AEFGFEDDFA, which according to Piano Keys is the melody of

TETRIS