Music › The Photosynthesis Song Backing Track Image 1 of 1 The Photosynthesis Song Backing Track $4.00 Karaoke / backing track for the Photosynthesis Song by Hopscotch Get notified by email when this product is in stock. Add To Cart Added! Karaoke / backing track for the Photosynthesis Song by Hopscotch Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More You Might Also Like Quick View The Color White Song Backing Track $4.00 Quick View Count by 9s Backing Track $4.00 Quick View Count by 4s Backing Track $4.00 Quick View 2D Shapes Song Backing Track $4.00 Quick View The Planet Song Backing Track (no Pluto) $4.00