And whoever cleaves to this ashrei (fortunate), which is the crown and head of the Torah, it is stated of him: (Ps. 1:3) And he shall be like a tree planted by rivulets of water... – and this is the Tree of Life, of which it is stated:... and its leaves shall not wither – and this is the first tiqun.
The second type of music is with ‘song’ (shyr) – this is Ḥokhmah – composed of ShaR (sings) and Yod י. And there are three Yods – י־י־י, – and they are the top and end and middle of the letter י Yod. And they are alluded to in the concealed Name, which is YOD QeY VAV QeY (=63).