Rock Band 2
50 Achievements
1,000
60-80h
Flawless Guitar Solo
100% on a guitar solo on Expert, using only the solo buttons
20
How to unlock the Flawless Guitar Solo achievement in Rock Band 2 - Definitive Guide
Simply set up a score duel player match with a friend, use whichever song you feel is best (I prefer "Give It Away" by Red Hot Chili Peppers), then play it through on expert.
As its a score duel you can't fail out, so just prepare for the solo, remember to use the 'solo' buttons not the normal ones and DON'T strum (like I did first time ;( ).
If you export Rock Band 1 songs into Rock Band 2, this solution will be helpful. If not, then I'm sorry. Anyway, one of the songs in Rock Band 1 you can transfer over is "Wave of Multilation." It has a pretty easy guitar solo, consisting of mostly orange notes (multiple oranges, like three blue-orange chords).
Considering you don't have to move your hand around much, this solo will be super-easy. If you aren't familiar with the songs layout, try it out in practice (there isn't a specific solo section to choose while in practice mode, since it's pretty short).
Its only 3 buttons (the middle), towards the end of the song.
Remember - do not strum! You cannot earn the achievement by strumming. You can only tap.
Easiest solo on the RB2 disc is probably the one in "You Oughtta Know."
What does this mean? You can use the guitar found in the bundle below to unlock the achievement.
http://www.amazon.com/Mad-Catz-Rock-Band-Guitar-Bundle/dp/B0...
They can be found for cheaper prices on eBay; I bought mine for $70.
If you have this problem, id suggest two hands, left hand on all 4 standard buttons, and your strum hand on the orange.
Id suggest "Give it away" as the first solo is simple.
When you hear "Bob Marly" get set up for red and wait.
Don't strum only click it, similar to the hammer-ons.
I can confirm this can be done in local score duel with two guitars.
Good luck.
Credit to FLG-3teRn4l-HaZe for the video.
Another general tip for this trophy is to try to get your fingers set on the solo buttons before the solo actually starts. It's alright if you miss some notes before the solo, just hit all of them in the solo.
Here's an achievement alot of people were upset about because you need to have the Rock Band Fender Stratocaster guitar. Not the new one, the old one works fine too. You have to 100% a solo on Expert only tapping on the solo butons, no strumming. A solo is when you are playing lead guitar, and your screen goes blue and a percentage comes up, saying what percent of notes you have hit in that solo. The easiest song I've found is Give it Away by RHCP. The rest of the song is mildly difficult, but the starting solo only has 25 notes, all sustained notes, and only one hammer on. You can also try The Kids in America by The Muffs, very easy solo. Another easy one is Go Your Own Way's first solo. It mostly just has ascending notes, then goes back down. If not, try Today by the Smashing Pumpkins. It's mostly just the blue note then hammer on to orange and back to blue. Just watch the ending and you should be fine. The easiest from Rock band 1 is Wave of Mutilation. -Thanks to FAFUNLEASHED for the vid.