prelude

1 ENTRIES FOUND:
prelude /ˈprɛlˌjuːd/ noun
plural preludes
prelude
/ˈprɛlˌjuːd/
noun
plural preludes
Britannica Dictionary definition of PRELUDE
[count]
1 
: something that comes before and leads to something else — usually singular — often + to
2 
: a short piece of music that introduces a longer piece