ISOTOPE Isotope (1974 UK 9-track LP the debut album by the British jazz-fusion quartet picture sleeve. The sleeve shows some light ringwear & the vinyl has the odd light sign of play GULP1002) 1. Then There Were Four2. Do The Business3. Oh Little Fat Man4. Sunshine Park5. Bite On This6. Upward Curve7. Retracing My Steps8. Windmills & Waterfalls9. Honkey Donkey