I don't sing, so I usually play the melody with my right hand and accompaniment (including arranger bass) with my left.

I play a lot of pop singer-songwriter stuff which is loaded with descending bass lines, counter-melodies, etc. I'm not an expert on music theory, but to make things easier I used to always substitute (simplify) the "hard" chords, so the end result looked like a Hal Leonard E-Z Play Today type of score.

Once I understood slash chords and heard the difference they make, I made an effort to learn and play the songs that way. BUT... It's SO annoying to have to play the "normal" chords in root position. It translates into a lot of hand movement, and for me, mistakes or late chords on fast runs.

[Yes I know that Yamaha and Korg both have a chord recognition mode where 3 notes any inversion = root bass, 2 notes = lower one is the bass of an "on bass" chord. BUT... 1 note = unison?? (should be major IMO.) Depending on how many basic major chords are in the song, the cure is worse than the disease! What were they thinking!?]

Anyhow I bought myself a one-octave set of bass pedals thinking that maybe it would be easier to play any inversion of the chord with my left hand, and the altered bass note (when needed) with my left foot. Never even plugged them in!

What I did that helps a little, is configure a MIDI solutions footswitch controller. With some tricky SysEx, I was able to program a MOMENTARY on-bass function. Press the pedal, play a chord = on bass. Release the pedal and any inversion gives the root bass. This function should have been momentary from the factory, but every brand requires one press to turn Bass Inversion on, and another to turn it off. This toggle behavior makes it difficult to use during a song. The momentary functionality is great when there are just one or two slash chords in a song. If there are a lot of slash chords in the score, it makes me want to cry! And maybe try the bass pedals again.