Here's the other problem with the music in the prequels: Rather than asking politely asking Williams to compose a new cue when he didn't like it, Lucas instead opted to track music from elsewhere after the scoring session was over. This didn't happen in the OT. With the Hoth battle or the Endor battle, it was just one huge, great cue, and the whole thing was kept.
In contrast, here's the music for Geonosis in Ep. II:
THE BATTLE OF GEONOSIS I (6:21)
Mace Windu Arrives (0:06) * TPM computer game -- sqdanger1.imc
Mace Ignites His Lightsaber (0:06) * Unknown
"This party's over!" (0:06) * TPM:UE, Disc 1, Track 3 [1:55-2:01]
The Jedi Reveal Themselves (0:12) * TPM:UE, Disc 1 Track 4 [0:50-0:56/0:58-1:01/1:04-1:13]
Back to the Balcony (0:02) * TPM computer game -- sqdanger1.imc [0:08-end] (last note)
Impossibly Outnumbered (0:10) * TPM:UE Disc 1, Track 3 [2:02-2:13]
Super Battle Droids Advance (0:04) * TPM:UE Disc 1, Track 9 [3:01-end]
The Battle Begins (0:28) * TPM: OST Track 9 [1:58-2:26]
Jedi vs. Droids (0:14) * TPM: OST Track14 [0:50-1:04]
Stolen Chariot (0:40) * SW:E1 RACER computer game -- Podloop1.wav [0:01-end]/TPM:UE Disc 1, Track 33 [1:44-end]
The Battle Continues (0:32) * TPM: OST Track 9 [2:27-2:59]
The Reek Charges (0:38) * TPM:UE Disc 1, Track 12 [0:09-0:41]
Mace vs. Jango (0:04) * Unknown (a few looped notes)
Mace Decapitates Jango (0:03) * TPM computer game -- sqplayerdeath.imc
Jango is Dead (0:02) * Unknown (a few timpani hits)
Count Dooku and Boba React (0:08) * TPM: OST Track 13 [4:34-4:42]
Threepio Down/Aggressive Negotiations/Obi-Wan vs. The Acklay (1:06) * TPM: OST Track 5 [0:26-0:45/0:19-0:24/0:46-0:49/0:55-1:25/2:20-2:30]
"This is such a drag!" (0:20) * TPM: OST Track 9 [1:36-1:57]
Surrounded (0:39) * TPM: OST Track 5 [1:51-2:23/2:29-end]
THE BATTLE OF GEONOSIS II (1:34)
The Droids Re-activate (0:02) * Unknown (timpani rumble)
Imminent Execution (0:11) * TPM:UE Disc 1, Track 14 [1:02-1:13]
Send in the Clones (1:04) * TPM:UE Disc 1, Track 15 [0:03-0:29/0:51-0:58/1:01-1:38]
A Most Peculiar Dream (0:08) * TPM:UE Disc 1, Track 14 [1:00-1:08]
Boba Mourns (0:08) * TPM:UE Disc 1, Track 3 [1:55-2:02]
THE BATTLE OF GEONOSIS III (1:41)
Underground Chamber (0:04) * Unknown (timpani swell)
Dire Straits (0:13) * Conflict Theme (probably tracked from "The Councils Confer")
Republic Gunships (0:48) * TPM: OST Track 6 [0:03-0:48]
Spider Walker (0:08) * TPM: OST Track 10 [4:02-4:10]
"Attack those Federation Starships" (0:14) * TPM: OST Track 14 [2:27-2:41]
Reporting to Master Yoda (0:10) * TPM: OST Track 14 [3:15-3:25]
THE BATTLE OF GEONOSIS IV (1:57)
The Ultimate Weapon (0:47) * Tracked from "Spying on the Separatists" * Track 10 [6:45-6:50/6:08-6:51] (ends with timpani-roll snippet)
Wheel Tanks (0:10) * TPM:UE Disc 1, Track 5 [0:02-0:12]
Droid Explosion (0:05) * TPM computer game -- sqplayerdeath.imc (a few extra timpani hits tacked on)
The Conspirators Escape (0:26) * Tracked from "Arrival at Kamino" * Track 1 [2:13-2:39]
Concentrating All Fire (0:44) * Jedi Power Battles computer game -- Track 5 [0:15-0:59]
Attack of the Clones (0:22) * Unreleased
THAT'S what's wrong with music in the prequels.