Complex sentence: After leaving college, Barrios-Mangoré dedicated his life to writing poems and practice his music, and he arranged more than 300 songs which he would write in poem, then play with his guitar.
Split into simpler sentences: After leaving college, Barrios-Mangoré dedicated his life to writing poems and practising his music. He arranged more than 300 songs which he would write in poem, then play with his guitar.