2dxPlay

Play konami 2dx files from the command line.

Install with pip and run it from anywhere.
pip install 2dxPlay

Usage:

2dxplay infile.2dx

If the file contains more than one wav, it will play all tracks sequentially.
Press Ctrl+C to pause and enter a track number to jump to, or q to quit.

###Tip: Play any 2dx file just by double clicking on it: Right click on a 2dx file, choose Open With > Look for another app on this PC.
Navigate to your python installation where 2dxPlay.exe is installed. (I use python 3.7, so pip installed it in %appdata%\Local\Programs\Python\Python37\Scripts).
Check the "Always use this app" box and profit.