This is an assignment for a jazz improvisation class at Cousera.
I overdubbed a bass solo over an mp3 on my PC using Audacity.
Please note, I do not have any recording equipment. So, I ventured to plug the electric bass directly on the microphone plug on my PC. As expected there was no  way to obtain a decent clean bass sound on that configuration. So, if the sound of the bass wasn't going to be clean anyway, I decided to try to use the noise, so I applied some effects and filters. The final product is significantly better that the original sound. It is not a very classic sound of a jazz bass solo but I thing the quality of the sound is good to hear the bass solo clearly and to enjoy the piece of music as a whole, considering the equipment used.
I hope  the unusual sound on the solo does not bother too much and you get to enjoy the piece of music.

just stay tuned....