And these are the singers
shiyr (sheer)
to sing -- sing(-er, -ing man, -ing woman).
chief
ro'sh (roshe)
the head (as most easily shaken), whether literal or figurative (in many applications, of place, time, rank, itc.)
of the fathers
'ab (awb)
father, in a literal and immediate, or figurative and remote application) -- chief, (fore-)father(-less), patrimony, principal. Compare names in Abi-.
of the Levites
Leviyiy (lay-vee-ee')
a Levite or descendant of Levi -- Leviite.
who remaining in the chambers
lishkah (lish-kaw')
a room in a building (whether for storage, eating, or lodging) -- chamber, parlour.
were free
patar (paw-tar')
to cleave or burst through, i.e. (causatively) to emit, whether literal or figurative (gape) -- dismiss, free, let (shoot) out, slip away.
patiyr (paw-teer')
open, i.e. unoccupied -- free.
for they were employed in that work
mla'kah (mel-aw-kaw')
deputyship, i.e. ministry; generally, employment (never servile) or work (abstractly or concretely); also property (as the result of labor)
day
yowmam (yo-mawm')
daily -- daily, (by, in the) day(-time).
and night
layil (lah'-yil)
a twist (away of the light), i.e. night; figuratively, adversity -- (mid-)night (season).