The new Version (2.6) is optimized to work with Sounds of Yoba a content pack for Custom Music that I highly recommend you install with this mod.
Adds a Harp to the game that can be equipped with Sheet Music and does magical stuff. Think along the lines of Ocarina of Time.
The harp and all SheetMusic is obtained through mail at different times in the game. The first should arrive in your mailbox 1-2 days after you start..
Later saves that already met the conditions will still receive all the SheetMusic within a few days.
(You will still receive them in the mail after that)
Harp of Yoba 2.0 (Redux):
Raises the heart level of NPCs on their birthday.
Serenade of Thunder:
(Mailed after Abigail's Mountain event)
Makes it rain for a few seconds and waters all the crop in a large area around you. (smaller the second time)
Prelude to Yoba:
(Mailed after wedding)
Makes trees grow (once a day), shakes them and temporarily enhances your magnetic radius to collect whatever falls off.
Ballad of the Wanderer:
(Mailed after completed Community Center)
Teleports between two locations
The Fisherman's Lament:
(Mailed after you played 5 songs in front of the old mariner at the beach who only shows up when it rains)
Gives a huge luck and fishing Buff once a day and a smaller fishing buff after that.
Ode to the Dark:
(Mailed after playing the Birthday Sonata for the Wizard)
Randomly turns all monsters in one location into the same type of monster
(Mailed after playing 2 songs for Granpa's shrine)
Plants 9 random seeds if you are standing in a field. (once a day)
Rondo of Time:
(Mailed after George's house event)
Speeds through 3 hours.
(Mailed after Haley's Animal Event)
Pets all animals in an area.
(Mailed after killing 100 Monsters)
Refills energy and stamina (once a day) and gives a speed boost.
*Suggested by GhostlyFox13