What are all the OSTs in the main series games that feature piano prominently?

Question

Title says it all. An example would be Unwavering Emotions from B/W, or Dialga and Palkia's theme from D/P.

Comments

Cynthia's encounter theme is almost all piano. I don't know of any battle themes with lots of piano, though.

Answer 1

As sumwun mentioned, there aren't many battle tracks that feature a piano. However, many other noteworthy songs have piano/keyboard as one of the main instruments.
From RSE/ORAS:

• Rustboro City (ORAS)
• Trainers' School
• Oceanic Museum
• Verdanturf Town
• A Path We Must All Walk (ORAS)*
• Museum*
• Let's Go Home (ORAS)
• Ending Theme
• Azoth* (ORAS)
• The Lament of Falling Stars (ORAS)
• Strains of a New Beginning (ORAS)

From FRLG:

• Caves of Mt. Moon
• The S.S. Anne

From DPPt:

• Twinleaf Town*
• The Pokémon lab
• Jubilife City*
• Pokemart
• Route 205
• Eterna Forest
• Eterna City*
• Solaceon Town
• Veilstone City*
• Valor Lakefront
• Canalave City
• Mt. Coronet
• Battle! (Dialga/Palkia)*
• Pokémon League (Day)
• Route 228*
• Pokémon Center (night)*
• Captured a Flag Underground!
• Old Chateau*
• Lake Caverns
• Trainers' Eyes Meet (Artist)
• Hearthome City
• The Elite Four Appear!
• Champion Cynthia
• Ending Theme*

From HGSS:

• New Bark Town
• Cherrygrove City*
• Pokegear Radio: Pokémon Channel
• Goldenrod Game Corner
• Bicycle
• National Park
• Clair*
• Battle! (Entei)
• S.S. Aqua
• Cerulean City*
• Battle! (Suicune)
• Pokegear Radio: Pokeflute
• Viridian Forest
• Mt. Moon

From BW/BW2

• Coronation Day*
• A Day of Beginnings (BW)/An Adventure is Beginning (BW2)
• Professor Juniper*
• Let's Go Together!*
• Route 1*
• Accumula Town
• Hurry Along 2*
• Team Plasma Plots
• Cheren's Theme*
• Gate
• Skyarrow Bridge
• An Unwavering Heart
• Bicycle*
• Driftveil Drawbridge
• Trainers' Eyes Meet (Scientist)
• Dragonspiral Tower
• Tubeline Bridge*
• Shopping Mall Nine
• Trainers' Eyes Meet (Roughneck)*
• Opelucid City (W/W2)*
• Farewell
• Anville Town
• Marvelous Bridge
• Surf*
• Lacunosa Town
• Aspertia City*
• Bianca's Theme (BW2)
• Virbank City
• Castelia City Gym
• Lentimas Town
• The Frozen City
• Cave of Being
• Black Tower: Entrance*
• White Treehollow*
• Staff Credits

From XY:

• Route 1*
• Friends Theme "a New Meeting"
• Sina and Dexio
• Gate
• Professor Sycamore's Theme*
• Camphrier Town*
• Together with Shauna
• Hurry Along 2
• Trainers' Eyes Meet (Maid)
• Glittering Cave*
• Geosenge Town
• Coumarine City
• How About a Song? "An Unwavering Heart"
• Friends Theme "Reunited"
• Lysandre Labs
• An Eternal Prison
• AZ
• Route 18
• Friends Theme "Friends Forever"
• Snowbelle City*
• How About a Song? "Jubilife City"
• The Sun Shines Down
• Shopping*
• Boutique
• Coiffure Clips
• PR Video Studio
• Emma's Theme

From SM:

• My Home
• Lillie's Theme*
• Trainers' School
• Hau'oli City (Night)
• Salon
• Apparel Shop
• Ten Carat Hill
• Heahea City
• Royal Avenue*
• Aether Paradise*
• Lusamine's Theme*
• Ultra Beasts?
• Acerola's Trial*
• Po Town
• Trainer's Eyes Meet (Aether Foundation)
• Battle! (Aether Foundation)*
• Unsettling Atmosphere
• Battle! (Lusamine)*
• Lillie's Resolve
• Lively Lillie!
• Seafolk Village
• Steely Lillie!*
• Showdown! (Lusamine)*
• A World Falls Apart
• Mother and Daughter
• Lonely Lillie
• Someday...
• Welcome Back
• Staff Credits

*Songs with this mark are not primarily piano-based, but the piano is noticeable and has a significant purpose in the song.

Please leave a comment if you think a song is missing, I will add it in.

Source: iTunes

Comments

Wow... this must have taken a pretty long time just to answer my one question! Thank you very much!!

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Yeah...especially considering the fact that I haven't played gen 4, so I didn't know much music off the top of my head...but I really like listening to game soundtracks and music in general, so this was fun to do! :)