Complex sentence: Clay had a knack for composing music on his computer with programs such as Propellerhead's Reason 3.0, while Keelei was a skilled guitarist and vocalist that shared similiar interests in musical compositions.
Split into simpler sentences: Clay had a knack for composing music on his computer with programs such as Propellerhead's Reason 3.0. While Keelei was a skilled guitarist and vocalist that shared similiar interests in musical compositions.