I have created many Midi styles and have always started with a 'known' style and modified it to my own liking. It saves having to do all the fiddly stuff.

One of the simplest ways of doing that is to import an instrument (pattern) that you like from one style to the style you are building. They don't even have to be the same number of beats per bar, or even the same genre. All of that is defined in your style.

So if you like a finger picking country guitar in an even country style you can copy it to a jazz waltz.

I prefer to edit an existing style and then rename it, but there are many ways to start. select STYLES> STYLE MAKER>EDIT CURRENT STYLE. (or click the Top Hat icon on the tool bar)

The from the menu bar on the new window select Import Instrument from style.

The radio button for the instrument will show you the A and B patterns. Don't worry too much about the numbers, but click the box with the note. It will show you the notes that will be played. These are the patterns. The A and B patterns may be the same, or one may be missing. This is how you make the instrument play what you want.

It's a bit of a learning curve, but it can be very satisfying. You van adjust velocities, note lengths, as well, of course as the voice. For instance you may import a piano and make it a Vibe in your style.

I found it best if you try import from a style that is close to the one you are trying to make in genre, tempo, etc., as BIAB has done a lot of work to make that instrument sound good in the style. Moving it away from it's original format may not always work

Have fun

BIAB for Windows Version 2019 (643)
Windows 10 (1909)