And David, because of this, made an instrument of eight strings, and he praised the blessed Holy One with eight. It is this that is written: (Ps. 12:1) To the conductor: on the eighth... – and eight letters, to each one there are eight, all amounting to 72 – Y-A-Q-D-V-N-Q-Y – eight, and suspended from them are 64, eight to each one, all amounting to 72, this is the mystery of ḥashmal.
And there is music which ascends through ten – and this is: YOD QE VAV QE, and about them it is stated: (Song. 5:14) His hands are wheels of gold... And there is music that ascends through six, it is this that is written: (Song. 5:15) His thighs are pillars of ‘shesh’∞marble (six).