 
 <prompt> Which one of di following no be characteristic of di Lombardi mandolin: wider, double steel strings, or shallower back? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Samuel Adelstein describe di Lombardi mandolin for 1893 as wider and shorter pass di Neapolitan mandolin, with a shallower back and a shorter and wider neck, with six single strings to di regular mandolin's set of 4. Di Lombardi dey tuned C, D, A, E, B, G. Di strings dey fastened to di bridge like guitar own. Dem get 20 frets, wey cover three octaves, with an additional 5 notes. Wen Adelstein write dis, dem no get nylon strings, and di gut and single strings "no dey vibrate so clearly and sweetly like di double steel string of di Neapolitan." 