1 Chronicles 15:16

And David spake to the chief of the Levites
The six before mentioned, ( 1 Chronicles 15:11 )

to appoint their brethren to be the singers;
before the ark, as they brought it up:

with instruments of music, psalteries, and harps, and cymbals;
which were used in those times, see ( 2 Samuel 6:5 ) ( 13:8 )

sounding by lifting up the voice with joy;
the instrumental music was to be attended with vocal music, and that very sonorous and loud, and performed with all tokens of inward joy and gladness, as the occasion required.