Domain Solfachord Melodious

The Main Solfachord Combo

You begin by summoning Primoa which then searches Happiness, then you use the search from that to add Gracia and Coolia (or if you can summon more cards and want the extra body, go for Cutea and then use her to search Coolia). Gracia, when summoned, then searches for Elegance and you'll use that to search two pendulum scales, using Coolia for cost. I usually search Beautia and Solfegia for a nice 2-9 scale. Link cards away, pendulum them back, do whatever you want. Everything after this depends on your starting hand.

Melodious and Fusions

I tried adding all of the good Melodious monsters as well as the ones that can special summon themselves. If you can get out two, that's enough for their Link monster, Bloom Harmonist. You can use her to bring out Aria and Elegy for protection, or you can summon cards that enable fusions. Tamtam is a very funny target since she adds Polymerization from your deck/GY to your hand and is not once per turn, should you find ways to keep bringing her out. Soprano has similar utility as well. With all of these cards that can fuse, I'll draw some attention to Bacha, who can keep things moving. She is incredibly easy to summon and can be used as a Fusion material or even for a Link summon since that results in yet another monster. No matter how you do it, you're sure to get a few boss monsters in play.

Other Standout Cards

Dawn Angel Kambi is a great card due to being so easy to summon and in a pinch, she can search for Cutea. Sakitama also exists to make summoning Bloom Harmonist easier, as it locks you into special summoning only Melodious monsters, which can be tricky with a bad hand. Since you'll be fusing a lot, Cross-Sheep will be really good for it's revival effect. I also like Mutiny in the Sky since it can recycle all of your Melodious cards should you use it to summon Bloom Prima.

Negation

The main problem this deck has is dealing with negation. It can make plays and spit out a decent board, but it has a lot of unfortunate choke points that I have not been able to remedy. I felt like I did the best I possibly could, but perhaps there may be other options that I haven't discovered. I know at one point, I even considered Performapal Ladyange as a deck master, which would have enabled access to Performapal and Odd-Eyes support. Still, it's more than fine in a casual pod.

Credit: Radiant Horns