I didn't know the existence of this album until I found it being mentioned in the passing. Bloody hard to find it, too.
Way of wonderful suicide (gosh, what a title) is 回路-kairo-'s second original album, after 夜明けのセカイと思考回路 (their other 5 albums are Touhou arrangements). This album was released during M3-29, which would somehow explain its obscurity - never mind the fact that this circle don't get much mentioning most of the time...
If you are expecting some screams ala Foreground Eclipse here, then look elsewhere. The music is more post-rock and ambient than the stuff you'd hear from their Touhou arrangement. 556t sure have went slower with her voice in this album - to be honest I kind of prefer her vocal in previous works, as her voice here come across to me as somewhat flat in some of the tracks.
I have no complaint with the music though. There's more piano this time around compared to their previous works, and they even included violin in one of the track. This album reminds me of their last original work, and alone, but never alone. If you enjoy their slower and ambiance sound, then you'll love this one.
Favourite tracks: Love song, Answer, 風の香り, Way of wonderful suicide