Complex sentence: In the late 1980s after filling in many times for guitarist Mike McKenna, Leonard joined as the guitarist for the Kendall Wall Band, providing him the experience of performing with a house band at the Black Swan in Toronto, Ontario.
Split into simpler sentences: In the late 1980s after filling in many times for guitarist Mike McKenna, Leonard joined as the guitarist for the Kendall Wall Band. Providing him the experience of performing with a house band at the Black Swan in Toronto, Ontario.