There are a lot of variables and judgment calls to be made when citing audio recordings! From CMOS 14.163:
A citation may begin with a title in a note; in a bibliography entry, list by author, performer, or other primary contributor. If the conductor or performer is the focus of the recording or is more relevant to the discussion than the composer or songwriter, either one may be listed first. Include either the date of the recording or a publication date, or both. If a date cannot be determined from the recording (a common problem with older recordings and with music files downloaded out of context), consult a library catalog or other resource. If no date can be found, use “n.d.” (for no date). Recordings on LP or disc typically include acquisition numbers, which follow the name of the publisher with no intervening comma. For digital recordings other than compact discs, a streaming service or file format may be noted if relevant but is not required.
In general, include as much of the following criteria as possible, but it is acknowledged that some of this information is trickier to find than others!
Related to the note above, some of this information is not always easy to find on these platforms. Consider looking for the album in a library catalog or search for more information on Discogs.
LastName, FirstName. Title. OtherContributors. Publisher Accession#. Recorded/Publication Date. Streaming audio, Platform.
clipping. There Existed an Addiction to Blood. Sub Pop SP-1330. 2019. Streaming audio, Spotify.
#. FirstName LastName, Title, OtherContributors, Publisher Accession#, Recorded/Publication Date, streaming audio, Platform.
1. clipping., There Existed an Addiction to Blood, Sub Pop SP-1330, 2019, streaming audio, Spotify.
(LastName Year, Timestamp)
(clipping. 2019, at 1:02)
Related to the note above, some of this information is not always included on YouTube, particularly for ripped audio files. Consider looking for this information elsewhere in a library catalog or on Discogs - or ask a librarian for help!
Some examples include total runtime in their citations before the URL. Even if all you write about a YouTube video is the music, it still should be cited like a video (CMOS 14.167).
LastName, FirstName. "Video Title." Recorded Date, posted Date, by Creator. YouTube. URL.
Sorrell, Jeanette, conductor. "Vivaldi: La Folia (Madness) -- Apollo's Fire." Recorded live November 1, 2011, posted May 13, 2013, by Apollo's Fire Baroque. YouTube. https://youtu.be/i4qePY2Wdss?feature=shared.
#. FirstName LastName, "Video Title," recorded Date, posted Date, by Creator, YouTube, URL.
1. Jeanette Sorrell, cond., "Vivaldi: La Folia (Madness) -- Apollo's Fire," recorded live November 1, 2011, posted May 13, 2013, by Apollo's Fire Baroque, YouTube, https://youtu.be/i4qePY2Wdss?feature=shared.
(LastName Year, Timestamp)
(Sorrell 2011, at 6:09)
LastName, FirstName. Title. OtherContributors. RecordedDate. Publisher Accession#, Publication Date, compact disc.
Chin, Unsuk. Rocaná/Violin concerto. Viviane Hagner, violin. Conducted by Kent Nagano. Recorded 2008. Analekta AN 2 9944, 2009, compact disc.
#. FirstName LastName, Title, with OtherContributors, RecordedDate, Publisher Accession#, Publication Date, compact disc.
1. Unsuk Chin, Rocaná/Violin concerto, with Viviane Hagner, violin, conducted by Kent Nagano, recorded 2008, Analekta AN 2 9944, 2009, compact disc.
(LastName Year, Timestamp)
(Chin 2009, 18:47)
LastName, FirstName. Title. OtherContributors. RecordedDate. Publisher Accession#, Publication Date, compact disc.
Mitchell, Joni. Shadows and Light. Recorded September 1979. Asylum Records BB-704, 1980, 2 sound discs, 33 1/3 rpm.
#. FirstName LastName, Title, with OtherContributors, RecordedDate, Publisher Accession#, Publication Date, compact disc.
1. Joni Mitchell, Shadows and Light, recorded September 1979, Asylum Records BB-704, 1980, 2 sound discs, 33 1/3 rpm.
(LastName Year, Timestamp)
(Mitchell 1979, 12:27)
AuthorLastName, FirstName. Liner notes to ComposerFirstName LastName, Title. OtherContributors. Publisher Accession#. Recorded/Publication Date. Format.
Gothoni, Maris. Liner notes to Unsuk Chin, Rocaná/Violin concerto. Viviane Hagner, violin. Conducted by Kent Nagano. Recorded 2008. Analekta AN 2 9944, 2009, compact disc.
#. AuthorFirstName LastName, liner notes to ComposerFirstName LastName, Title, OtherContributors, Publisher Accession#, Recorded/Publication Date, format.
1. Maris Gothoni, liner notes to Unsuk Chin, Rocaná/Violin concerto, with Viviane Hagner, violin, conducted by Kent Nagano, recorded 2008, Analekta AN 2 9944, 2009, compact disc.
(LastName Year, PageNumber)
(Gothoni 2009, 15)