Singers from the priestly tribe were even exempted from duties that other Levites were required to perform so that they could devote sufficient time to composition and, most likely, to rehearsal. ​ — 1 Chron. 9: 33.
Preestrisoost lauljad olid isegi vabastatud kohustustest, mida leviidid üldiselt pidid täitma; nii said nad pühendada piisavalt aega heliloomingule ja vägagi tõenäoliselt ka harjutamisele.