I feel that I am making progress with Improvisation this week. I have managed to go beyond the pentatonic scale and change scales according to the chords. I composed a blues line to go over the chords and found this helped to understand the chord changes. I practiced this against the backing track (Bb blues) and used a number of rythmns. I am also playing some Scottish tunes on G minor so hopefully this will well help - same flats.
I have also been listening to some of the blues standards again. I have been tracking down the recordings that are in the Abersold book. I like Cantaloupe Island. Downloaded it so its on my MP3.
I can hear the chord changes better and follow the ii, V, ! progression. I can understand the raised third can be used rather than pentatonic scales.
Practicing scales and melody. Having played the melody the feel of it seems to stick better and then its more possible to improvise.