i try to do that, but it doesnt seem to work for me. i can hum the bassline to a whole, but as soon as i pick up the bass its gone. i dont know what notes im humming, and as soon as i break it down to try and match on the bass each note that im humming, i lose the whole thing.
I think the thing is the mastery over our vocals far exceeds that of any instrument we could play; 1. because we've been using them for so long, since babies and 2. we use them constantly (talking included). thats why u can sing along with a song and be in key (well most people anyway) and not even have to think whether you're in Ab or E or whatever key. u never think "when this part comes im gonna sing a D then an A over this Dm7 chord" u just do it. i think the whole point is being able to have that same connection to ur bass. i sometimes see a lot of the professionals when they do soloing, they sing out the notes as they're playing them. thats how they're making that transfer of what they hear in their head to what they play on the bass. im gonna try working that way and hopefully be able to apply that to everything. solos, riffs, and just standard basslines
right now i just riff off of the pentatonic scales (major & minor) and i practice them so much that i just come up with combinations that i like and then use them in the songs i play during my practicing to see which ones work and which ones dont