Complex sentence: As a result, the artist started travelling down to Nashville to undergo development, whereby Brandt was matched up with various experienced songwriters whom he could relate to, work well with and who would help him to refine his writing skills.
Split into simpler sentences: As a result, the artist started travelling down to Nashville to undergo development. He was matched up with various experienced songwriters whom he could relate to, work well with and who would help him to refine his writing skills.