Axl Gleese

Blaine goes to Burts Repair shop to watch the guys from Glee rehearse for their Greased Lightin' scene. Entering the shop, he finds Finn speaking to a customer from Indiana named Axel Heck. Blaine wants to rehearse for his "Teen Angel" part. He can't keep his pitch though, Axl offers to play the chords on his guitar. done, he put's it away but it breaks. How can Blaine repay Axl?