Guitar Hero III
59 Achievements
1,000
Xbox 360
Track Master
Buy all songs from the shop
5
How to unlock the Track Master achievement in Guitar Hero III - Definitive Guide
There are 26 songs to buy in total. At $500 each, it'll cost you $13,000 to buy them all. This roughly translates to 5-starring just under three tiers on medium or about two on hard. Just save up enough money and buy them all.