A form of music, or musical device, that is now considered outdated or dead. A play on the word, "tombstone".
1. "My grandpa still listens to music in his truck on an old 8-track player. That thing is such a tunestone".
2. "I saw someone selling music from the 50's on TV last night. R.I.P 50's tunestone."
2. "I saw someone selling music from the 50's on TV last night. R.I.P 50's tunestone."
by G-Laser November 15, 2013