Often sentimental recording

• This-and-that recording for a friend or a party
• Homemade compilation of songs, perhaps on a cassette
• Song compilation
• Underground hip-hop release
• Homemade collection of songs
• Homemade cassette with assorted songs
• Underground rapper's demo
• Personalized musical gift

Wiktionary Word definitions in Wiktionary
n. A compilation of songs on a tape, usually encompassing many different artists and made without permission.