Sound recording are usually listed not in a bibliography, rather a separate discography. Below are examples of a basic entry, but please refer to the Chicago Manual for full details.
General Notes Format:
2. Creator/Composer's First Name Last Name, "Title of Recording/Song," by Performer's First Name Last Name (if different from Creator/Composer), on Title of Album, recorded or copyright date, recording company, recording number, Studio Name, date or recording release, format.
For Example:
2. Frank Sinatra, "For Once in My Life," on My Way, recorded 1969, Concord Records, 2009, CD.
Discography:
3. Creator/Composer's Last Name, First Name. "Title of Recording/Song." By Performer's First Name Last Name (if different from Creator/Composer). On Title of Album. Recorded or copyright date. Recording company, recording number, date of recording release. Format.
For Example:
3. Frank Sinatra. "For Once in My Life." on My Way. Recorded 1969. Concord Records, 2009. CD.
General Notes Format:
4. Creator/Composer's First Name Last Name, "Title of Recording/Song," by Performer's First Name Last Name (if different from Creator/Composer), on Title of Album, recorded or copyright date, accessed date, URL.
For Example:
4. Sally DeFord, "Be Still, My Soul," by James Lyones, on He is My Song, n.d., accessed April 7, 2016, https://soundcloud.com/sally-deford-music/be-still-my-soul-james-loynes?in=sally-deford-music/sets/he-is-my-song-album.
Discography:
5. Creator/Composer's Last Name, First Name. "Title of Recording/Song." By Performer's First Name Last Name (if different from Creator/Composer). On Title of Album. Recorded or copyright date. Accessed date. URL.
For Example:
5. DeFord, Sally. "Be Still, My Soul." By James Lyones. On He is My Song. N.d. Accessed April 7, 2016. https://soundcloud.com/sally-deford-music/be-still-my-soul-james-loynes?in=sally-deford-music/sets/he-is-my-song-album.
General Notes Format:
6. Creator/Composer's First Name Last Name, "Title of Recording/Song," by Performer's First Name Last Name (if different from Creator/Composer), on Title of Album, recorded or copyright date, accessed date, Name of Database. URL.
For Example:
6. Jim Beard, "Hope," by Metropole Orchestra, on Revolutions, n.d., accessed April 7, 2016, Naxos Music Library, http://lsc.naxosmusiclibrary.com.lscsproxy.lonestar.edu/catalogue/item.asp?cid=INT3418-2.
Discography:
7. Creator/Composer's Last Name, First Name. "Title of Recording/Song." By Performer's First Name Last Name (if different from Creator/Composer). On Title of Album. Recorded or copyright date. Accessed date. Name of Database. URL.
For Example:
7. Beard, Jim. "Hope." by Metropole Orchestra. On Revolutions. N.d., Accessed April 7, 2016, Naxos Music Library, http://lsc.naxosmusiclibrary.com.lscsproxy.lonestar.edu/catalogue/item.asp?cid=INT3418-2.