Here is the full list of all 15 Music Store Simulator Prologue achievements.
Start an Advertising Campaign
Complete all the Customers' Orders
Buy your first Skill Course
Take a Rest on the Sofa
Customize the slots of a Warehouse shelf
Build the first Guitar without the Tutorial
Complete a Guitar with a Quality level higher than the Customer's Order
Complete a Guitar with a Quality higher than 3.0
Play a chord with a built Guitar
Paint an instrument at 100%
Purchase and position a new Workbench in your Studio
Accept all the new Orders
Complete the Tutorial
Glue the area at 100%
Build all the Guitars without resting