Horse girl training game.
https://www.youtube.com/watch?v=STSBraMf284
https://www.youtube.com/watch?v=hj9PxkNERAY
https://www.youtube.com/watch?v=W3yaQuFU6Uc
https://www.youtube.com/watch?v=nPd3qd0hVPk
I don't know where to find the Umamusume CDs but there are songs on Amazon Prime Music/Unlimited.