Complex sentence: He decided to quit Juilliard to find a new way, he was scouted by Shin Suk-ho after he saw him performing as an extra guitarist in a random indie-band performance.
Split into simpler sentences: He decided to quit Juilliard to find a new way. He was scouted by Shin Suk-ho after he saw him performing as an extra guitarist in a random indie-band performance.