Way to Improve Trap Work on a Steinway

[@psc5535]

Very informative, great advice

[@PianoTechnicianAlexChen]

Thank you, A humble gentleman. Thank you very much for your video. It gave me fresh ideas.

[@geworthomd]

My Bosendorfer 9’6” sounds flat like a highschool piano. I had it tuned to 442. The sound board is good. Felts have 50% but with some lines. Anything I can do to brighten the sound?