Complex sentence: Later takes have Richards changing the title to "Love is Strong"; although the final release was significantly altered by Jagger's contribution of lyrical innovation and use of a harmonica, a trademark instrument for him rarely utilized in the Stones' middle period work.
Split into simpler sentences: Later takes have Richards changing the title to "Love is Strong"; although the final release was significantly altered by Jagger's contribution of harmonica and lyrical innovation. The song is notable for Jagger's use of a harmonica, a trademark instrument for him rarely utilized in the Stones' middle period work.