There are two types of bass guitar players. The first type just plays root notes and a few chords and never really advances in his bass playing. The second type learns how to properly use bass guitar scales under chords and can always come up with new thoughts about what to play. Which type are you?
If you play bass you’re familiar with playing the root note of whatever chord the guitar player is playing. It’s possible you also know how to play the triads; or the three notes that make up the chord the guitar player is playing. Nothing incorrect with learning and playing those but they just scratch the surface of what really excellent players do which is to play bass scales under chords.
When you play triads you’re really playing parts of either a major or a minor scale. These two scales are a excellent place to start. Bear in mind that even though a song may be in the key of G, when the band changes to the C chord you should be playing a C scale, either major or minor, not still playing a G scale. While nearly all the notes match, the secret to this is to at least start thinking in scales per chord.
If you want it might be simpler for you to first learn two simple 5 note scales. These are called pentatonic scales. There’s a pentatonic major and a pentatonic minor scale. The pentatonic scales are the three notes that make up the chord plus two additional notes. If the middle note in the chord is a major note you would be playing the major pentatonic scale, if the middle note is a minor note you would be playing the minor pentatonic scale. You can also use the minor pentatonic scale under seventh chords, but we’ll get into that in another article.
Let me give you an example. The guitar player is playing a C major chord. Those notes are C, E, and G. The right pentatonic scale to play under this chord is the major which is C, D, E, G. A. Just five notes. If the guitar player is playing a C minor chord which is C, E flat, and G; you would play the minor pentatonic scale which is C, E flat, F, G, and B flat.
Once you mastered the two basic pentatonic scales, the next step in your playing is to learn both the complete major scale and the complete minor scale. Each if these scales will always sound right under certain chords. Also remember that when you use pentatonic scales, it does not matter what key the song is in, only what chord is being played at the time, which determines what scale you should be using.
Try using these simple scales under chords the next time you play and you will start to see endless new possibilities for your bass playing.
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