Quote from Renee W. on April 11, 2018, 8:06 pm

Dynamic and upbeat intros between 10 and 30 sec for like these for example:

https://vimeo.com/249167757
https://vimeo.com/250419816

Alternatively, longer tracks will work as well, as long as there are clean break points.

or like this: https://www.youtube.com/watch?v=3NeeLGekNCE