Load up your audio project and select your channel track. 2. Next, hit R to record a sweet and clean bass line or riff. 3. Play the low e, A, D, and G notes on your electric/acoustic guitar to try to come as close as possible to dial in a realistic bass guitar tone. 4. Now, head over to Audio Units to load the AUNewPitch plugin, a pitch shifter plugin that can come in immensely handy. 5. Adding AUNewPitch plugin opens up the plugin window where you can change the pitch scale. 6. Remember, 100 cents equal 1 semitone. So, to make your electric guitar sound like a real bass guitar you would want to switch down an octave. 7. An Octave comprises 1200 cents, so to pitch down you will need to push the slider to -1200 cents. Next close the plugin window. Note: In other DAWs, pitch shifter plugins may measure the notes in Semitones. In such a case, all you need to do is to pitch down -12 semitones.  8. Next, you can enrich this newly minted bass guitar tone with a free bass distortion and overdrive plugin such as TSE BOD v3. This works exceptionally well with bass guitar recordings for metal sub-genres and rock n roll. 9. Tweak the Level, Drive, Low, Blend, High and Presence knobs all you want to dial in a suitable bass guitar tone as per taste. Alternatively, you can also use Logic Pro X’s standard Bass amp plugins to dial in a rich bass distortion tone. 10. To make your guitar sound like an even more realistic bass guitar, you can add a FET Compressor and a Channel EQ in the signal chain and sculpt a truly realistic bass guitar tone that even skilled ears won’t be able to tell apart.