Also the Levites which were the singers, all of them of Asaph, of Heman, of Jeduthun, with their sons and their brethren, being arrayed in white linen, having cymbals and psalteries and harps, stood at the east end of the altar, and with them an hundred and twenty priests sounding with trumpets:)
Solomon, and the elders of Israel, had done what they could to grace the solemnity of the introduction of the ark; but God, by testifying his acceptance of what they did, put the greatest honour upon it. The cloud of glory that filled the house beautified it more than all the gold with which it was overlaid or the precious stones with which it was...
Commenting on 2 Chronicles 5:11-14
the Levites which were the singers--On great and solemn occasions, such as this, a full choir was required, and their station was taken with scrupulous regard to their official parts: the family of Heman occupied the central place, the family of Asaph stood on his right, and that of Jeduthun on his left; the place allotted to the vocal department was a space between the...
A hundred and twenty priests - Cymbals, psalteries, and harps, of any kind, in union with a hundred and twenty trumpets or horns, could not produce much harmony; as to melody, that must have been impossible, as the noise was too great.