Yardbirds drummer Jim McCarty
explained in a 2011 interview with Rock Cellar Magazine
why the band covered the song:
"Eric (Clapton) hated the fact that we were recording a very commercial pop song ['For Your Love
']. He also did not like the idea that Paul (Samwell-Smith) had elected himself as the producer of the session. In an effort to smooth Eric's feathers, we agreed to record two additional songs that he had suggested as singles: the Major Lance song 'Sweet Music' and The Shirelles' song 'Putty (In Your Hands)'. Neither of those songs was ever released as a single, but both would appear on future Yardbirds albums. The singles' setup was beginning to kill us as a band. Paul wasn't a great songwriter but he was good as a part of the team. When he left the band, it was a bit of a blow creatively. But we managed to get some songs together and carry on for a while."
DeeTheWriter - Saint Petersburg, Russia Federation