Dance music recalled in haikus, oddly (3)
I believe the answer is:
ska
'dance music' is the definition.
(genre of music)
'recalled in haikus oddly' is the wordplay.
'recalled in' says the letters should be written in reverse (letters recalled or sent back).
'oddly' indicates alternate letters (letters in the odd-numbered positions are used).
The alternating letters of 'haikus' are 'aks'.
'aks' in reverse letter order is 'SKA'.
(Other definitions for ska that I've seen before include "Jamaican music, forerunner of reggae" , "Music genre" , "Dancehall music" , "Jamaican music style" , "popular music" .)