The opening theme of the TV anime “Frieren(Sousou No Frieren)“ is arranged in the key of Gm, following the original composition. Performances and karaoke versions are available for separate purchase from various vendors, and the length of the song remains the same as the original.
Solo & Back Tracks
https://music.youtube.com/playlist?list=OLAK5uy_lxlsGjEoxMfvNMVAQfmRrwhzp1y5IOgfQ