Citation, Documentation of Sources

Q. I am editing a work that refers many times to music recordings (albums). When using notes and bibliography style, I assume that the full citation to the album should be put in the first footnote, and in subsequent footnotes a short form is called for. What components are needed for a shortened citation for a record album?

A. CMOS is silent, so choose the elements that make the most sense to you. Performer and title, orchestra and title, composer and title, conductor and title—it needn’t be the same choice for every citation. Note that the first element in a short citation should be the element it’s listed under in your bibliography.

[This answer relies on the 17th edition of CMOS (2017) unless otherwise noted.]