This is the 9202nd most frequent Polish word.
taneczny
Relating to dance.
The word 'tanecznej' in this sentence is an adjective that modifies 'muzyki' (music), describing the type of music as dance-related.
Lubimy słuchać muzyki tanecznej na imprezach.
We like listening to dance music at parties.
Here, 'taneczny' modifies 'układ' (sequence), indicating that the sequence performed was related to dancing.
Grupa wykonała taneczny układ na scenie.
The group performed a dance sequence on stage.
In this case, 'taneczny' characterizes 'styl' (style), indicating that the style of the dress is suitable or reminiscent of dancing.