Re: bebop lines
What they spelled out is the bebop dominant scale which is a major scale with the chromatic seventh, making the scale degrees 1 2 3 4 5 6 b7 Natural 7 8. This works over dominant scales. There is also the bebop major scale, which has a chromatic 6 instead of a chromatic seventh, making the scale degrees 1 2 3 4 5 b6 Natural 6 7 8. You can use this over a major 7th chord, and can also use it over a tritone sub for a chord and lean on the b6. They're both very hip scales to use.