1. Musicnotes.com: Musicnotes offers the sheet music for "Forest Piano" arranged for piano solo or piano and guitar. You can purchase the digital sheet music and print it at home or access the interactive sheet music online.
2. Hal Leonard: Hal Leonard also publishes the sheet music for "Forest Piano." You can find arrangements for piano solo and other instruments on their website.
3. YAMAHA Music Media Corporation: YAMAHA Music Media Corporation is the original publisher of "Forest Piano." You can check their catalog to see if the sheet music is still available for purchase.
4. Local Music Stores: Some local music stores may also carry the sheet music for "Forest Piano." You can visit a music store in your area to inquire about the availability of the sheet music.
It's recommended to check the specific websites or contact the publishers to confirm the availability of the sheet music and any restrictions on distribution or use.