Following Combo Breaker
but there's a guitar

And Lyre that they call harp (anime only)

A Flute

And another Lyre

Ps: the anime has one of the best soundtracks ever so it's not weird to see many instrument related characters

Saint Seiya: A Shonen (think Dragon Ball or Bleach, for example) anime from the 80s; while it isn’t very popular in Japan or North America, in Mexico and Europe is considered a classic.
Besides the original series, they made a prequel called Saint Seiya: The Lost Canvas, the character in the image comes from that one.
The original has many long streched battles and over-the-top reactions, like many of the genre, so you may like it, The Lost Canvas is better, IMO, and there’s not much problem if you don’t watch the original first.
Sadly, there’s no sax in neither of series.