Baritone is a member of Trio de Minor along with Bassdrum and Falsetto. His theme colour is Blue. All of the members of the trio are always together and tend to sing in sync. Also like the others from Minor Land he can't stand happy music and cringes at the sound of it. As part of the trio his personality seems to be cool and cold but still a follower of the group. He is one of the first to speculate that Siren might be Cure Muse only to be proven wrong later.
In episode 26, Mephisto gives everyone in Trio the Minor new powers with his special earphones. Baritone's sense of sight has now been greatly enhanced, as he is now able to spot a Note very easily.
He now has a purple marking on the left side of his face, which resembles half of a heart.
In episode 37 Falsetto gives Bassdrum and Baritone new monsterous forms.
His hair is a white-ish blue color and looks somewhat like a lizard. He also gains a white cape with shoulder pads, growing at least 7 feet and has what looks to be a long white tail.
- Baritone got the least number of summoned Negatones, two in total.
- He is the first villain to summon a black bone Negatone.