When you think it has been ages since you ML "I Can Feel It Coming in the Air Tonight" by Phil Collins. Was in the movie "Risky Business" The couple had sex in an almost deserted train at night, in I believe Chicago.
When you want to ML "I Want a Little Sugar in my Bowl" by Nina Simone. "Midnight At The Oasis" by Maria Muldaur. Good to hint to your S you are in the mood to ML.
"Afternoon Delight" by Starland Vocal Band. Always good.
For the classically imaganitive:
"Bolero" by Ravel (16:20 min),1812 Overture, Op 49, by Tchaikovsky, (16:47 min) especially the versions that use large church bells and 10" or larger naval guns (Boston Pop's?)instead of kettle drums near the end of the music to represent Moscow's victory over Napolean IE the big "O", and "Canon In D Major" by Pachebel (4:21 min really short ML sessions) The tempo of the music builds supposedly as sexual tension builds and last as long as many LM sessions last. Listen to the music a couple of times so you know what is about to happen before incorperating it in your LM session.
I am not a music or ML expert, so If I used the wrong terms please correct me as I enjoy learning. Not guaranteed to work for all people. Will need the amount of foreplay and after play/glow you desire for a complete, satisfying experience.