Most achingly-beautiful music

#1 Tchaikovsky's Symp. No. 5 in E Minor (Mstislav Rostropovich conducting the London Philharmonic is exemplary)

#2 Mozart's Sinfonia Concertante for Violin and Viola (as performed by Henryk Szeryng and Bruno Giuranna with the New Philharmonia directed by Alexander Gibson)

#3 Dire Strait's Brothers in Arms

Patti Smith Gone Again in particular My Madrigal. If this doesn't tear your heart out you have to be dead.

Mozart Requiem - Lacrimosa.

For a start, "Snow Queen" from Tom Rapp's "Beautiful Lies You Could Live In" LP Reprise 1971

Miles Davis "Siesta"