Actually, a lot of the songs we're talking about are vocals. Just about all of Aviators's stuff is vocal, Loyalty is vocal... Eurobeat Brony has Luna, Discord, and his Flim Flam Brothers and This Day Aria remixes, Glaze + Mic has Nightmare Night, Glaze + Stormwolf has Fruits of Her Labour, Stormwolf has Beginning of Order, d.notive has Let Your Mane Down, d.notive + zahqo has Hand For Hoof, zahqo has Luna's Ruse, Living Tombstone has September and his Becoming Popular remix, Mando has So Much Left To Know, I'll Be Waiting, and a couple more vocal songs (love his 8-bit too, though). EQD has practically a post a day dedicated to vocal music.