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Skill
Solid Gold, Baby!
Gold star any song.     25
Flawless Fretwork
100% a song on Expert guitar.     25
Flawless Drumming
100% a song on Expert drums.     25
Flawless Singing
100% a song on Expert vocals.     25
Flawless Groove
100% a song on Expert bass only using up-strums.     25
Flawless Guitar Solo
100% a guitar solo using only the solo buttons.     20
The Bachman-Turner Award
Maintain deployed Overdrive for 90 seconds.     25
Million Point Club
Earn more than 1,000,000 points in a single song.     25
Bragging Rights
Defeat a player in either Score Duel or Tug of War.     15
Comeback Kid
Defeat the last player beat you in either Score Duel or Tug of War.     15
Band Savior
Be a savior 3 times during one song.     20
Hello Cleveland!
Deploy Vocal Overdrive 4 times in a single song.     20
Overdrive Overdose
Achieved an 8x Band Multiplier     25

Band World Tour
Got Wheels
Won a Van in World Tour     20
Open Road
Won a Bus in World Tour     20
Jet Setter
Won a Jet in World Tour     20
Worldwide Sensation
Gain the ability to play around the world     25
West Coast Performer
Played a set on the West Coast of North America     10
God Save the Band
Played a set in the United Kingdom     10
Heartland Performer
Played a set in Middle America.     10
Western Europe Performer
Played a set in Western Europe.     10
East Coast Performer
Played a set on the East Coast of North America     10
Eastern European Performer
Played a set in Eastern Europe.     10
Road Dog
Played in every venue in the world     30
One Million Fans
Reached 1 million fans in Band World Tour     30
SECRET
This is a secret achievement regarding progression.     20     Hidden
SECRET
This is a secret achievement regarding progression.     20     Hidden
SECRET
This is a secret achievement regarding progression.     30     Hidden
SECRET
This is a secret achievement regarding progression.     50     Hidden
SECRET
This is a secret achievement regarding progression.     25     Hidden

Exploration
Clothes to the Edge
Buy over $100,000 worth of clothes.     20
Needs More Umlauts!
Made a Band Logo.     10
The San Dimas 4th Annual Award
Competed in a Battle of the Bands.     15
You’re Hired!
Hired a staff member.     10
You Killed the Radio Star
Made a music video.     15

Tour Challenge
Along for the Ride
Beat an instrument-specific challenge while playing another instrument     10
Challenge Novice
Complete 25 Challenges on Medium Difficulty, or 10 Challenges on Hard Difficulty, or 5 Challenges on Expert Difficulty     10
Challenge Master
Complete 25 Challenges on Hard Difficuly, or 10 Challenges on Expert Difficulty     15
Challenge Savant
Complete 25 Challenges on Expert Difficulty     25
The Final Countdown
Unlock an Impossible Challenge     15
Stage Igniters
Beat the Impossible Band Challenge     25
Lord of the Strings
Beat the Impossible Guitar Challenge     25
AN-I-MAL!!!
Beat the Impossible Drum Challenge     25
Virtuoso
Beat the Impossible Vocal Challenge     25
Groove Assassin
Beat the Impossible Bass Challenge     20
Buy a Real Instrument Already!
Beat an “Impossible” Challenge on Expert Difficulty     35

Drum Trainer
Beat It!
Complete all beats at 60BPM or higher, or half of the beats at 140BPM or higher     10
The Beat Goes On
Complete all beats at 100BPM or higher, or half of the beats at 180BPM or higher     20
Fill Me In
Complete all fills at 60BPM or higher, or half of the fills at 140BPM or higher     10
Fill Legend
Complete all fills at 100BPM or higher, or half of the fills at 180BPM or higher     20

The plus side from what I’ve read is that the Band World Tour stuff should be obtainable via single player.  Not that I advocate playing Rock Band solo, it’s just irritating that I’m only allowed to get certain achievements in RB1 by playing multiplayer.

Current Rock Band 1 progress has me pegged between hard and expert difficulty on the drums.  I’m stuck on songs because of my unresponsive red drum head.  I need to do more research into the sock mod to move on.  It helps if I don’t take long breaks from playing Rock Band too though.