A halogen piano light is just out of sight beyond the upper right corner. I used a flashlight to paint parts of the scene, especially the closest set of dampers.
Postprocessing
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Converted from RAW using dcraw and the RawPhoto plugin with GIMP 2.1.7. Cloned out some dust that I missed when I was wiping out the insides of the piano. Gaussian blur overlay. Cropped. Burned around edges. Scaled. Slight USM to compensate for scaling.
Alternate version (no soft focus!)
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Place: 6 out of 124 Avg (all users): 6.3107 Avg (commenters): 7.3000 Avg (participants): 6.0959 Avg (non-participants): 6.4615 Views since voting: 2266 Views during voting: 240 Votes: 177 Comments: 12 Favorites: 2 (view)
Excellent lighting... many people seemed to struggle with their lighting setups in this challenge, but you aced it with no problem. This is so warm and inviting. 9