Learn to play all Melodic Minor keys with seven scale patterns.
The Melodic Minor scale is a seven note scale with the eighth note completing an octave. Played on three notes per string, this scale can be played entirely with seven patterns. Each pattern can be played in any position on the fretboard. And because the root tone remains the same wherever the pattern is played, you can easily identify which key you’re in.
(Example) If you look at the chart, take pattern 1 and move it up the fretboard a half step, you land in the key of A# Melodic Minor. Patterns are always played in order 1-7 starting over with pattern 1 after pattern 7, regardless of starting position all the way through till you run out of frets.
Scale is charted for a six string bass. It can be played on a five string bass by omitting the first string (C). And on the four string bass by omitting the first string (C) and the sixth string (B) on the scale chart.
Melodic Minor scale 7 pattern chart for bass (.pdf)