Free Unplugged Backing Tracks with Keys matching "Type missing instrument here" found:

1. Rêverie for heart and spirit
   Unplugged backing track #193557
   Keys: hartmut
   Harp: Flolei
   

   Musical key: null major 
   

   Sounds like:Classical

2. Heart and Spirit-bass add
   Unplugged backing track #193442
   Keys: hartmut
   Bass: kmoon235
   

   Musical key: null major 
   

   Sounds like:Unplugged/classical

3. heart and spirit
   Unplugged backing track #193437
   Keys: hartmut
   

4. Miles away
   Unplugged backing track #76920
   Keys & Keys: Marcelo D
   Clarinet: bleymehl
   

   Meter: 4/4 
   Tempo: 85 BPM 
   

5. Missing you
   Unplugged backing track #36484
   Keys & Vocals: Mishteria
   

   Tempo: 60 BPM 
   

6. Missing piece
   Unplugged backing track #30988
   Drums: frankiejazz
   Keys: Marceys
   

   Meter: 4/4 
   Tempo: 100 BPM 
   

7. Tsao Mix II
   Unplugged backing track #11510
   acoustic Guitar: OliVBee
   acoustic Guitar: PeterVeillon
   Keys: Danalyze45
   

   Meter: 4/4 
   Tempo: 62 BPM 
   

8. A Drift Away (Guitar 1)
   Unplugged backing track #43761
   Guitar, Drums & Guitar: Danalyze45
   Keys: Mishteria
   

   Tempo: 82 BPM 
   

9. Already Missing You
   Unplugged backing track #91362
   Sequencer & Vocals: BigDaddyCee
   Drums & Keys: jamlady
   

   Meter: 4/4 
   Tempo: 70 BPM 
   

10. Missing You ....
    Unplugged backing track #37008
    Keys & Vocals: Mishteria
    Guitar: RobM
    

    Tempo: 60 BPM 
    

    Sounds like:Ballad

11. Missing Piece
    Unplugged backing track #31704
    Drums: frankiejazz
    Keys: Marceys
    Bass: sheaf
    

    Meter: 4/4 
    Tempo: 100 BPM 
    

12. "Last night" with KaiPlan and akethesnaker
    Unplugged backing track #20122
    Keys: Mishteria
    Bass: KaiPlan
    Guitar: akethesnaker
    

    Tempo: 130 BPM 
    

13. Rainbow In Her Deep Sky
    Unplugged backing track #49873
    acoustic Guitar & Vocals: aleonz
    Keys: hurzel
    Guitar: adu
    Drums: mpointon
    Bass: BassCook
    

    Meter: 4/4 
    Tempo: 120 BPM 
    Musical key: G major 
    

    Sounds like:Fantastic ballad with a great voice...

14. Missing Piece (trio)
    Unplugged backing track #31095
    Drums: frankiejazz
    Keys: Marceys
    Bass: mulambo
    

    Meter: 4/4 
    Tempo: 100 BPM