Audacity? So Windows, then?
There's only so simple something like this can be made to be. I barely
remember Cakewalk.
A commonly used DAW ( so it records audio as well as MIDI ) is Reaper. I
really like having one program do it all, so...
Once you get all the configuration figured out, the number of things you
have to to to record and playback MIDI in Reaper is pretty small. Setup
isn't hard, there are just a lot of menus.
Many "use cases" - things you'd try to do - are explained in detail in
videos on Youtube. This is a big plus for it.
You can try reaper before you buy.
You don't say how you'll connect the MIDI keyboard to the computer. Do
you have a USB interface with round 5 pin DIN connectors? A "MIDI over
USB" cable for the keyboard?
A MIDI port is just a serial port in the end. As is a "MIDI over USB"
arrangement. But you have to know how to tell the sequencer which to
use, stuff like that.
You might like n-Track better - the UI is a skosh simpler.
A lot of people like Ableton. It's supposedly simpler.
Good luck!
--
Les Cargill