The tamborim lends a very slightly uneven and highly distinctive 16th note groove to samba music.

Before the LP, you could only get 3 minutes or so onto one side of a record and now because you had a narrower groove and a slower speed, you could get up to 20 minutes, which meant that you could get a whole package of songs together on one record.

I am not in the groove today.

Tongue and groove.

After you've been away for so long, it sometimes takes a while to get back in the groove.

The articles of incorporation have finally been completed for our Digital Groove Club.

I'm in a groove.