Complex sentence: He began playing the guitar at the age of 12.Though Leskiw's high school year's he played in Winnpeg rock bands such as The Shags, Logan Avenue, and Wild Rice.
Split into simpler sentences: He began playing the guitar at the age of 12. Through Leskiw's high school years he played in Winnipeg rock bands such as The Shags, Logan Avenue, and Wild Rice.