What a great 1980’s Greco Firebird guitar in the shop. The owner’s main complaint about this guitar was tuning issues. The remedy was a good fret level & dress and replacing the original plastic nut with one made of bone. Of course a good set up ties it all together. In the end the guitar stayed in tune and played better in tune as well. Not to mention sustain and clarity were increased because of the bone nut. These Greco guitars from this era are excellent values. Grecobird!!