If you want a closer look into what happened with Miles Davis' music in the 1980's, this is the book for you. 10 years ago I planned an updated Danish version of my dissertation "That's Right" from 1991. The project stranded because of financial shortcomings. Things have changed, and this book is a result of that. The dissertation looks at the music Miles Davis recorded in the 1980's. The historic context is described. Miles Davis as an improviser is described and analysed. Focus is on "Blues", "Spanish modes", "Pop" and "Modern composition". The esthetic guidelines he used are stated. When you go to page one you are back in time in the year of 1991. A few more recent comments and explanations have been included.