Taste is related to Good. Good is related to Comfort. Comfort is related to State. Obligation is a type of State. 
Jazz is a type of Music. Music is a type of Language. German is a type of Language. 
Taste <--RelatedTo--> Good <--RelatedTo--> Comfort <--RelatedTo--> State <--IsA-- Obligation 
Jazz --IsA--> Music --IsA--> Language <--IsA-- German 