Introduce quiet_assets.rb to disable asset pipeline logs
r g model Band name
rake db:migrate
r g model Membership user:references band:references
rake db:migrate
r g migration AddBandIdToTracks band_id:integer
rake db:migrate
Band has many members
r g migration RemoveUserIdFromTracks
rake db:migrate
Remove relation between user and tracks
Add relation between band and tracks
Track is depend on a band
User can create a band
r destroy model Membership
Remove memberships
Remove users
r g migration AddMemberToBand member
rake db:migrate
Design for band page