So, I guess, the simpler the better for me in terms of a "solution". I should have mentioned that in my post - my bad. RE: my style of playing - I'm just an old chord guy trying to get well - not a flat or finger picker so don't have the skills to play melody or lead. I will be looking at all suggestions in detail. When you are 76, you get to know the inside of doctor's offices quite well. I've been dealing with some medical issues. Works like a charm and you can easily fix any clunkers in Melodyne or Piano Roll View. If it's a simple bass line without any slides or fancy fret work I will play the bass line on the E and A string of my strat and export it to midi using Melodyne and drag that to TTS-1 or SI-Bass. I bought it mainly for the steel guitar because the steel guitar VST's out there require fancy keyboard work to express all the variations and I couldn't wrap my head around it. It also has some excellent steel guitar capabilities also and you can import your own midi song into it and use it's samples. It's a really nice program but overkill if you just want to do bass lines. At the time I didn't have good internet access so I paid for the audiophile version that comes on HDD.
![bluegrass band in a box files bluegrass band in a box files](https://npr.brightspotcdn.com/dims4/default/ddb334d/2147483647/strip/true/crop/4330x2667+0+399/resize/880x542!/quality/90/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Flegacy%2Fsites%2Fwncw%2Ffiles%2F201708%2Fus_navy_country_current_bluegrass_band.jpg)
It makes using VST effects and bouncing individual instruments easier. It's a lightweight synth and takes zero resources so I just use a different instance of it for every instrument. I layer the Acoustic and Electric bass using different instances of TTS-1. If you want to do a basic bass track you can play it on a guitar and convert it to midi using Melodyne and then drag that midi file on to an instrument track such as TTS-1 set to Acoustic Bass. TTS-1 has a really good upright bass named Acoustic Bass iirc.
![bluegrass band in a box files bluegrass band in a box files](https://bloximages.chicago2.vip.townnews.com/wiscnews.com/content/tncms/assets/v3/editorial/2/bd/2bd845fc-7929-5595-9cf1-fc76eaf60504/563d11cc59a64.image.jpg)
I am also considering the purchase of Adam Monroe's Upright Bass plugin. I know very little about the SI-Bass, but understand it can be adjusted to resemble an upright or acoustic bass.