Released October 1, 1973

Personnel

• Billy Cobham - drums, percussion, production
• Jan Hammer - electric and acoustic pianos, Moog synthesizer
• Ken Scott - recording and re-mix engineering

Additional personnel on "Quadrant 4", "Taurian Matador", "Stratus", and "Red Baron"

• Tommy Bolin - guitar, Echoplex
• Lee Sklar - electric bass

Additional personnel on "Spectrum" and "Le Lis"

• Joe Farrell - soprano and alto saxes, flute
• Jimmy Owens - flugelhorn, trumpet
• John Tropea - guitar on "Le Lis"
• Ron Carter - acoustic bass
• Ray Barretto - congas

Track Listing:

Side A:

1. Quadrant 4
2. Searching for the Right Door
3. Spectrum
4. Anxiety
5. Taurian Matador

Side B:

1. Stratus
2. To the Women in My Life
3. Le Lis
4. Snoopy's Search
5. Red Baron