| 1. Palm Grease (Hancock)  10:38 |  | 
    
    | 2. Actual Proof (Hancock)  9:42 |  | 
    
    | 3. Butterfly (Hancock, Maupin)  11:18 |  | 
    
    | 4. Spank-A-Lee (Clark, Hancock, Jackson)  7:12 |  | 
    
    
  
            
           
          
          
          
            
            
          
          
            
      Herbie 
      Hancock 
      - Fender Rhodes electric piano, Hohner D-6 Clavinet, ARP Odyssey, ARP 
      Soloist, ARP 2600, ARP String Ensemble
Bennie Maupin - soprano 
      and tenor saxophone, saxello, bass clarinet, alto flute
Paul 
      Jackson - electric bass
Mike Clark - drums
Bill 
      Summers - percussion
Recorded at Wally Heider Studios, San 
      Francisco in August, 1974