Here is the full list of all 34 Across the Grooves achievements.
Listen to the record for the second time with a majority of "flower" and "lightning" choices
Decide to stay at Yard Sale Records to listen to some music
Listen to the record for the third time with a majority of "skull" and "lightning" choices
Listen to the record for the second time with a majority of "skull" and "spiral" choices
Pay a visit Frank and Daphné
Have an altercation with Jakub and Alexander in Paris
Unlock "Crossroads", "Acid Trip", "Highschool Sweetheart" and "Hey Mr. Crowley" during the same play through
Listen to the record for the third time with a majority of "flower" and "spiral" choices
Be romantically involved with Alan and decide to go back to him at the end of the game
Stay true to your musical tastes each time you listen to the record
Listen to the record for the second time with a majority of "flower" and "spiral" choices
Spend the evening with Frank in Paris
Be single at the end of the game
Decide to travel all the way back to Bordeaux after leaving Boleskine
Spend the night with both Patrizia and Alan during the same play through
Accept to bring Alan along with you
Choose cheese before desert
Decide to stay with Ulysse at the end of the game
Listen to Marc's ramblings about a certain bluesman from the Delta
Learn about Eddie's youth
Listen to the record for the third time with a majority of "flower" and "lightning" choices
Pay a visit to Eddie Black after his concert in Paris
Meet Rob and Gwen in London
Decide to travel back London after leaving Boleskine
Meet Enzo in Paris
Meet Didier in London
Listen to Arthur's lecture about Led Zeppelin
Meet the bookseller in St. Ouen
Learn about Enzo's past
Be romantically involved with Patrizia and decide to go back to her at the end of the game
Have a radical change of style and musical tastes when you listen to the record for the third time
Listen to the record for the third time with a majority of "skull" and "spiral" choices
Listen to the record for the second time with a majority of "skull" and "lightning" choices
Travel directly to Mykonos after receiving a postcard from Ulysse