Notes on that chord and it will sound good. (the 3rds of the A minor scale ) So play an arpeggio of those If you move to an Am7 chord, the notes of that chord will be A-C-E-G Those notes on that chord and it will sound good. If you move to a D7 chord, the notes of that chord will be D-F#-A-C (Such a chord, which upon analysis proves to be a triad with an additional 3rd to bring to the 7th, is called a 7th chord.) So play an arpeggio of those notes on that chordĪnd it will sound good. If you're playing on a G7 chord, the notes of that chord (the 3rds of the G mixolydian scale G-A- B-C- D-E- F) As explained, 3rds can be an adventure, so 3rds - E in this case - are not always as safe as the others. You canĬertainly experiment, but those notes can be considered safe. Notes, they may or may not work - many variables involved. Their order, working the groove and moving in ascending andĭescending directions, but stick to those notes. ( That simple chord is known as a Triad.) Experiment with changing So play an arpeggio that matches the groove of the song and is comprised of those notes on that chord, and it will be sound good. ![]() ![]() If you're playing on a simple C chord, the notes of that chord (theįirst two 3rds of the C Major Scale : C-D- E-F- G) will beĬ-E-G. In most simple rock, blues and jazz you'll encounter, the analysis amounts to "stacking the 3rds" of the scale indicated by that chord to build the chord on a guitar or piano, and what you can call the "allowed notes" of your bass-line. Since you're just starting out, the best rule to follow is to build your bass-line from the notes that comprise the chord you are playing behind. But I'll leave aside those technicalities for now and just talk about playing some decent bass-lines: The chord itself, its function in the music, and its derivation determine that. The key of a song does not determine which notes you use for the bass-line on a particular chord - the key represents the overall sonority of a song, not all the chords, or the notes they comprise. Of G does that mean I'm only allowed to play the notes in that scale Where my confusion really comes in is that if the song is in the key I know this is a very basic example and there is a lot more to it, but I'm just beginning to dive into this, so I'm trying to get a broad understanding of and a good foundation for this and then start to get into specifics. Where my confusion really comes in is that if the song is in the key of G, does that mean I'm only allowed to play the notes in that scale (G, A, B, C, D, E, F#)? Or does the scale change when the song progresses to the next chord? So when the song gets to the D chord, am I allowed to play any note on the D scale (D, E, F#, G, A, B, C#)? For G the root and 5th would be G and D, then C and G, then D and A. ![]() So if a song's chord progression is G-C-D, a simple bass line would be to hit the root and 5th of each of those chords. Since I'm pretty new to music theory, I'm going to try and construct my question in the most basic way possible, using very simple chord progressions so I can begin to wrap my head around this.Īt its bare minimum, from what I understand, bass is all about outlining the chords that make up a song. My ultimate goal is to be able to improvise on any song that is thrown my way. ![]() I have no problem playing the songs, but I kinda just go through the motions and don't truly understand them. I've learned plenty of beginner/intermediate songs and play with some friends about once a week. I've been playing bass for about two years now.
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