What’s your favourite song to play on the bass?

I started taking classes in September and we have a concert every half years at my music school to show off what we learned in the semester.

We have to play one jazz standard, but we can also choose one more song to play, which can be anything as long as it shows the skills we have acquired.

So I am curious what is everyone’s favourite song to play, maybe a groove that flows really well or a bass line that hits just right.