Zero no Kiseki — 5 It's simplistic and sometimes sounds false. Indifferent melancholy.
Ayunga — 6 Plus, it earns social credit and half a bowl of rice; the task is completed satisfactorily, melancholic but without any miracles.
Judas Priest — 6 Despite my positive attitude towards the band, this particular track doesn't impress. It's too bland, monotonous, like chewing gum you've been chewing for half an hour. It evoked some melancholy.
Chamber of reflection — 2 Dreary instrumental, dreary lyrics, and an unpleasant androgynous voice. I felt passive-aggressive boredom instead of melancholy.
Ultranasilie — 6 And again, a respected artist with an unsuccessful track. It's viscous, indistinct, confusing, melancholic-phlegmatic.
Masha badabu — 3 Terrible vocals, the level of songs made by teenagers, I even winced, unpleasant, not melancholic.
The only thing I know — 6 Not Chopin, but it's acceptable. It didn't evoke melancholy, but it brought a sense of peace.
Monsieur kills himself — 6 Psychedelic, I even laughed. My ears got a little tired, I felt melancholy and didn't finish listening.
Indigo — 3 It feels like he's speaking through his nose, not singing. It didn't evoke melancholy, it annoyed me.
Violin — 6 There was a rather poignant and sad quality to it, but for most of this short track, I felt melancholy due to boredom and fatigue.
Echoes in the rain — 4 I didn't find any melancholy in it; it's just a default sound for a ringtone melody.
Added 3 minutes ago
You didn't really impress me, although you didn't disappoint me either. And no, the task wasn't "not to impress," but "to evoke a poignant, sweetly suffocating feeling of uplifting longing," or something close to that. I'll try listening to them again later; maybe at least one of them will get a 7.
e si ieu muoir, er mi grans deliuriers