en_tn/psa/081/001.md

A psalm of Asaph. See: rc://en/ta/man/translate/writing-poetry and rc://en/ta/man/translate/figs-parallelism

For the chief musician;

"This is for the director of music to use in worship;"

set to the Gittith

This may refer to a style of music. See how you translated this in Psalms 8:1.

A psalm of Asaph

"This is a psalm that Asaph wrote."

God our strength

"God who gives us strength"

the God of Jacob

AT: "the God of Israel, the nation of Jacob's descendants" (See: rc://en/ta/man/translate/figs-metonymy)

play the tambourine, the pleasant lyre with the harp

These are musical instruments.

tambourine

a musical instrument with a head like a drum that can be hit and with pieces of metal around the side that sound when the instrument is shaken

when our feast day begins

"and on the days when our feasts begin"