First-year pressing
Alvin's Harmonica / Mediocre 1958 USA & Canada Pressing (45-HLU 8823)
Alvin's Harmonica / Mediocre by David Seville
Mono
- Artist
- David Seville And The Chipmunks / David Seville And His Orchestra
- Title
- Alvin's Harmonica / Mediocre
- Labels
- London Records 45-HLU 8823
- London American Recordings 45-HLU 8823
- Country
- USA & Canada
- Released
- 1958
- Format
- 7", 45 RPM, Single, Mono