One verse

Srimad Bhagavatam 3.12.47

3.12.47

स्पर्शस्तस्याभवज्जीव: स्वरो देह उदाहृत । ऊष्माणमिन्द्रियाण्याहुरन्त:स्था बलमात्मन: । स्वरा: सप्त विहारेण भवन्ति स्म प्रजापते: ॥ ४७ ॥

sparsas tasyabhavaj jivah svaro deha udahrta usmanam indriyany ahur antah-stha balam atmanah svarah sapta viharena bhavanti sma prajapateh

sparsah
the set of letters from ka to ma
tasya
his
abhavat
became
jivah
the soul
svarah
vowels
dehah
his body
udahrtah
are expressed
usmanam
the letters sa, sa, sa and ha
indriyani
the senses
ahuh
are called
antah-sthah
the set of letters so known (ya, ra, la and va)
balam
energy
atmanah
of his self
svarah
music
sapta
seven
viharena
by the sensual activities
bhavanti sma
became manifested
prajapateh
of the lord of the living entities

Brahma’s soul was manifested as the touch alphabets, his body as the vowels, his senses as the sibilant alphabets, his strength as the intermediate alphabets and his sensual activities as the seven notes of music.