I am switching/adding Anglo concertina from (solo, unaccompanied electric) guitar.
I love rhythmic single note pieces.
Irish Jigs, reels, hornpipes. . . (I greatly prefer Irish to Scottish/English/Breton), and also medieval dance tunes (saltarellos, tarantellas, Macedonian “oros” . . . and even played Bach solo violin pieces such as his Partitas. . .)
I am slowly relearning these on Anglo concertina.
For learning straight forward versions of lots and lots of Irish tunes, I learn from Tomoyuki Koshi on YouTube.
But there is a YouTuber named Arany Zoltan (no relation to my username) who is Fantastic.
he is a multi instrumentalist who plays all sorts of European trad music (from Scandinavia to the Balkans). He plays lots of Early Music/Medieval pieces and seems to focus on Eastern European/Balkan/Mediterranean music.
here are two Hungarian pieces that I absolutely love:
I believe that most of the music I mentioned (in addition to Irish music) is achievable on an Anglo concertina.