Aliya Summary: The total for the Gershon family: 2,630. The Merari family: 3,200. Thus the grand total of Levites eligible to transport the Tabernacle and its vessels: 8,580.
LA’AVOD AVODAT AVODA VA’AVODAT MASA… Note the four words in a row with the same root. Rashi says the Avodat Avoda (kind of a strange phrase) refers to playing musical instruments. As far as Avodat Masa is concerned – the Gemara in Chulim comments that only when there is heavy manual labor involved, then there is an age limit for the Leviyim (as was mentioned above). And it seems that the age limit of 50 was only for the carrying. In other words, a Levi was able to continue serving in the Mishkan after 50, but only for SHIRA and SH’MIRA. (Yet the count was only for Leviyim from 30-50. Interesting, no?)