Complex sentence: Based on the unexpected success of the song, the younger Davies began exploring a solo career but follow-up singles did not meet with the same success and, by mid- 1969, his solo ambitions would be set aside for a decade.
Split into simpler sentences: Based on the unexpected success of the song, the younger Davies began exploring a solo career. The follow-up singles did not meet with the same success and, by mid- 1969, his solo ambitions would be set aside for a decade.