▁to ▁seriously ▁consider ▁integr ating ▁American ▁popular ▁music ▁with ▁concert ▁music . ▁In ▁the ▁early ▁ 1 9 8 0 s , ▁Bern stein ' s ▁popul ist ▁attitude ▁was ▁rarely ▁shared ▁by ▁critics ▁who ▁fav ored ▁" ser ious " ▁contemporary ▁concert ▁music . ▁ ▁One ▁year ▁later , ▁in ▁the ▁summer ▁of ▁ 1 9 8 2 , ▁D augh ert y ▁tra ve led ▁to ▁Germany ▁to ▁attend ▁the ▁D arm st äd ter ▁Fer ien kur se ▁( Intern ationale ▁Fer ien kur se ▁für ▁Neue ▁Musik ▁– ▁D arm stadt ▁International ▁Summer ▁C ourses ▁in ▁New ▁Music ). ▁ ▁D arm stadt ▁was ▁one ▁of ▁the ▁leading ▁cent ers ▁for ▁new ▁music ▁in ▁Europe , ▁where ▁the ▁musical ▁a est het ics ▁of ▁The odor ▁W . ▁Ad orno ▁were ▁still ▁of ▁great ▁influence . ▁ ▁D augh ert y ▁attended ▁lect ures ▁given ▁by ▁compos ers , ▁including ▁Brian ▁Fer ney h ough ▁and ▁Karl hein z ▁Stock hausen , ▁and ▁performances ▁by ▁the ▁Ar d itt i ▁String ▁Quart et . ▁ ▁At ▁D arm stadt , ▁D augh ert y ▁became ▁friends ▁with ▁Karl hein z ' s ▁son , ▁the ▁tr ump et ▁player ▁Mark us ▁Stock hausen . ▁ ▁T ogether ▁they ▁formed ▁an ▁experimental ▁impro vis ation ▁ensemble ▁( Mark us ▁Stock hausen ▁on ▁tr ump et ▁and ▁electron ics ▁and ▁D augh ert y ▁on ▁synth es izers ) ▁that , ▁over ▁several ▁years , ▁performed ▁in ▁concert ▁h alls ▁and