Complex sentence: Anderson's major recording career slacked off in 1973 after a few years of modest chart singles on Epic Records, the most successful of which was a charming country version of Burt Bacharach and Hal David's "I'll Never Fall in Love Again".
Split into simpler sentences: Anderson's major recording career slacked off in 1973 after a few years of modest chart singles on Epic Records. The most successful was a charming country version of Burt Bacharach and Hal David's "I'll Never Fall in Love Again".