Last weekend, June 24 and 25, I went to the Intonation Music Festival in Union Park with a few friends. Overall, it was very enjoyable and I managed to snag a few goodies. Only one gripe, and that is that the microphones were shit. They were too easily distorted, and it made it impossible to decipher a lot of lyrics at the show. I was also accosted by a radical leftist that threatened me with military service (ZOMG!), which was amusing, at the very least. Oh well, at least the soundboard guys were much better than the ones at the Voodoo Music Festival. Here are my opinions of the acts that played, starting in order from the earliest to the latest:

June 24

Favourite Sons - Even with the shitty mics, I could decipher a few lyrics, and this seems to be a heartbroken band that plays rock music akin to the alternative scene's glory days in the early-'90's. Overall, a decent band that doesn't really bring anything new to the table.
Erase Errata - I'm in a state of uncertainty regarding this band. They're a politically charged band that remind me of Romeo Void musically (with a heavier dose of the avant-garde).
90 Day Men - I really didn't know what to make of this band. I've heard them described as math rock, and this would make them my first experience with the subgenre. I'll probably check them out more, though, as their music definitely intrigues me, at the very least.
Devin the Dude - A humorous, often raunchy MC. Entertaining, at the very least.
Jose Gonzalez - I'll be honest, here. I took a half-nap during his set. Otherwise, he vaguely reminded me of Nick Drake from what I heard.
Chromeo - I, along with my friends, hated this band. They played horribly dated techno-funk, and tried to go with the P-Funk cheesy self-awareness look, but failed.
High On Fire - Awesome stoner metal band. The frontman gets big points in my book for dedicating a song to Roky Erickson.
The Stills - I'll give them a chance, but I outright slept during this set. I just got a "generic indie-pop" vibe from them.
Roky Erickson - A triumphant return, to say the least. Even with all he has been through, he can still put on a great show. This was also his first performance in about 20 years outside of Texas (Austin, I believe).
Boredoms - A brilliant avant-garde/noise-rock band, who had a vocalist that sort of reminded me of Damo Suzuki of Can. They also had a distinct playfulness in their music - something a lot of avant-garde/noise-rock bands sadly lack.
Ghostface Killah - Overall, a great performance, though it sort of devolved into a talk about "bitches 'n' drugs" by the tail end of the set. Also, his DJ messed up a few times during the performance - it seemed he couldn't deal with Ghostface's loose (ie no "set in stone" setlist) performance.
Lady Sovereign - She's got attitude, that's for sure. I'll probably look into her more
The Streets - Couldn't stay for The Streets, so I won't render a judgment of any sort.

June 25

Tyrades - Loud, fast, angry punk rock. Another decent band that doesn't really bring anything new to the table.
Bill Dolan - Backed by two other guys, he played some nice instrumental stuff.
Panthers - Decent punk band with a vocalist that tries a little too hard. I might look into them a bit more, though.
Constantines - A good hard rock band that I'll definitely look into.
Rhymefest - A great MC that proves Chicago has an overlooked hip-hop scene (to say the least). Allegedly turned down an offer to work further with Kanye West in favor of going his own route. He also did a great freestyle during the show, too. I believe his debut album is coming out sometime in July, and I'll definitely be picking it up.
Annie - Meh, I was never a big fan of dance music, so I wouldn't give a fair opinion here.
Lupe Fiasco - I've heard his stuff described as nerd rap, and he really didn't do much for me.
The Sword - Another wonderful metal band that is apparently part of the "retro-metal" movement. Others have described them as stoner/doom metal, but I'm no expert on the genre, so I couldn't confirm or deny these claims.
Blue Cheer - Another great comeback, though Dickie Peterson's vocals have sadly deteriorated over the years. Oh well, they still gave a great performance.
Jon Brion - He did some originals with some covers thrown in for good measure, from what I could tell. Still, he was a very good musician, and anybody who likes the Zombies is cool in my book (he covered part of "Tell Her No" and "This Will Be Our Year").
Robert Pollard - He was drinking (tequila, from what the bottle looked like) and smoking while singing (nothing new, from stories I've heard). Still, he's a talented guy, and he had a tight band. He even let them jam for a few minutes at the very end, when he just left the stage.
Dead Prez - A politically charged group, to say the least. They, along with Rhymefest and Erase Errata, provided most of the sociopolitical commentary for the music festival (from what I could tell, as I bring up the mic issue yet again). I'll definitely look into them more, though, as they've piqued my interest.
Bloc Party - Didn't stay for them, as none of us really liked the group.

Keep in mind this is all my opinion, and I hadn't heard any of the artists live before (or even heard of several of them, period). While there, I also picked up an Upsetters t-shirt, along with vinyl copies of:

The Roots - Organix
Thelonious Monk with John Coltrane - Thelonious Monk with John Coltrane
Madvillain - Madvillainy Instrumentals