Complex sentence: For the FNAC label, Garnier released "French Connection" and the "Bout de Souffle" EP; after the label went under, though, he formed the F Communications label with Eric Morand (a friend who had also worked for FNAC).
Split into simpler sentences: For the FNAC label, Garnier released "French Connection" and the "A Bout de Souffle" EP. After that label went out of business, he formed the F Communications label with Eric Morand (a friend who had also worked for FNAC).