The sixth type of music is: ‘Praise YaH!∞hale-luyaH Praise Him!’ (hale-luhU) – and this is Hei-Vav ה־ו. About that is stated: (Ex. 12:42) It is a night of observances (shimurim) for Y”Y. And this is the Middle Pillar.
And the mystery of the word: (Jer. 31:6)... Let be heard! Praise! And say: Save O Y”Y, Your people, the remnant of Israel! To fulfil the scriptural verse: (Mic. 7:15) Like the days of your exodus from the land of Egypt, I shall show him wonders.
And the mystery of the word MoSHeH (Moses) is an acronym of: (Ecc. 1:9) Mah (What) Shehayah (which) was Hu (he) is that which will be. And regarding it MoSHeH (Moses) is an acronym of: (Ps. 33:14) Mim-khon (From-the-place-of) Shivto (His-dwelling) Hishgiaḥ∞He-looked-out – for he is the image of the Middle Pillar.