The Dorian mode is commonly used to solo over minor 7th chords, applicable to the ubiquitous II–7 V7 I progression, and a creative substitute, or expansion, of the minor pentatonic scale used in blues and rock. (This article assumes a basic understanding of the theoretical fundamentals of scale modes. To brush up on your knowledge of scale types and modes, you can always join Soundfly’s free online course, Theory for Producers.)
We briefly mentioned “Suzanne” by Leonard Cohen earlier. Aside from the religious references, it was also originally a poem Cohen wrote and published before the song was ever recorded. Try writing a poem purely on pen and paper, without worrying about melody or rhythm at all. Once you’ve got a solid draft, try setting it to music. Ultimately, you might need to be inventive or make some changes to make everything flow nicely, but this can produce good results.