Hello again! This weekend I managed to tackle two listed songs!
Here they are:

1. Convergence: Game Over
This song is obviously what it says, it's the game over song. If you suck at convergence, you'll get really familiar with this tune. Hope you like it. I know you said that I should use traditional instead of synth Jihaus, but I decided to go half and half. It turned out pretty good. Oh and I changed the chord structure, It flows a little better with the sad theme you requested. :D... :'(

2. Convergence - Black Gates Dungeon
When Jihaus said this song wasn't necessary but when he said he would love to have an organ, electric guitar, and a choir, and said that would've been asking for too much, I took it upon myself to say, "Nay! I shall do this!" I personally feel like this is the best work I've done so far. Too bad you'll only hear it once, heh go figure. You also requested robotic SFX so I immediately thought, industrial. Boom!

3. Convergence - Wind Ambiance 1

Convergence - Wind Ambiance 2

Convergence - Wind Ambiance 3

Convergence - Wind Ambiance 4

Since you said that you could probably download a wind ambiance on your own I decided to give you something you couldn't download, Synthesized Home-made wind! OO yeah! Use this for dungeaons, machines, Airships, whatever.
#1-3 increase in cut.
#4 has cut at max and includes tones, I thought this would be suitable for Mecha-dungeon like rooms that require no music. Or after a battle when music is best opted and no sound. so there!

Damn, man! Those songs are amazing. Especially Black Gates.

Words cannot describe how much you FUCKING WIN this day. Seriously. Not only have you filled in some gaps in the list, but you've filled them in with EPIC WIN. The Black Gates Dungeon theme is pretty much perfect, though there's quite a bit of calm in the middle and I was expecting it to be more forceful throughout like the last 30 seconds or the beginning. But you know what, screw it, it's a frigging great song and I'm happy enough I have it. Awesome job.

Did you like, go to musical school or something? I feel like an uneducated jerk!

Lol, nope. I will someday. All of the music theory I know I learned from self-interest, also by just having sit-downs with my music teachers at school. I may have annoyed them but it pays off in the end.

But all in all, Quiet, doesn't always necessarily mean calm...

Heheheh, I'm flattered.