Using Toontrack EZbass is super easy. To start creating a bassline, you can use the drum or keyboard MIDI in your song. Just import it into EZbass, and it will automatically generate a matching bassline. If you want to get a basic rhythm going, click the 'Add Groove' button. Set the chords for your song and start perfecting your performance in the 'Grid Editor'. You can also tap in the rhythm you want using the 'Tap2Find' feature, and EZbass will list matching variations from its MIDI library. If you prefer to play the bassline yourself, connect a MIDI controller and start performing. When it comes to converting audio to MIDI, use the 'Audio Tracker' feature. Just import a previously recorded guitar, bass, or rhythm performance, and EZbass will convert it for you. You can even record your own audio right inside the software. As for the bass selection, you have two great options. The modern Alembic bass offers a versatile and well - rounded tone, and the vintage Fender Jazz bass is perfect for mellow songs. You can use each pickup on the bass separately or blend them for different sounds. When using presets, adjust the controls to fine - tune the tone. The 'Sub - Bass' control can add fullness and definition to your sound. Route it out on a separate track if you want to process it further. Remember to keep your software updated to ensure the best performance. And if you run into any issues, check the Toontrack support website for help.