- How do I tell Delta from Chicago blues?
- By lineup and electricity. Delta is a single voice with an acoustic guitar, loose bar counts and raw recording. Chicago is the same music moved north and plugged in: electric guitar, amplified harmonica, bass and drums, with the twelve bars strictly aligned and sections squared off. Solitary narration is Delta; band groove is Chicago.
- How do I prompt for slide guitar?
- Name the tool and the tuning: “acoustic guitar in open G, bottleneck slide up around the twelfth fret, thumb keeping a steady pulse on the bass strings.” Asking for blues guitar generically usually returns electric string bending, which belongs to a different branch of the family.
- The output is too clean and too regular.
- Ask for the irregularity directly: “verse length may run a bar long or short, following the vocal,” “mono recording with tape hiss and mild distortion,” “a stomping foot as the beat.” Much of what identifies this style is its imperfection, and imperfection has to be requested.