Which vocal type is played in the song "Der Kapitan"?
select type from vocals as t1 join songs as t2 on t1.songid = t2.songid join band as t3 on t1.bandmate = t3.id where t2.title = "Der Kapitan"
Which vocal type did the musician with last name "Heilo" play?
select type from vocals as t1 join songs as t2 on t1.songid = t2.songid join band as t3 on t1.bandmate = t3.id where t3.lastname = "Heilo" and t2.title = "Der Kapitan"