 
 <prompt> Wetin be di quantity? Based on di question wey dey before dis one, write small tori wey get di answer. E fit be 1 - 20 sentences. Context: <response>: As many as five bands dey tour during di 1920s. Di Jenkins Orphanage Band play for di inaugural parades of Presidents Theodore Roosevelt and William Taft and dem tour USA and Europe. Di band still play for Broadway for di play "Porgy" by DuBose and Dorothy Heyward, wey be stage version of their novel wey get di same title. Di tori dey based for Charleston and e feature di Gullah community. Di Heywards insist say make dem hire di real Jenkins Orphanage Band to act themselves for stage. Only few years later, DuBose Heyward collaborate with George and Ira Gershwin to turn im novel into di now famous opera, Porgy and Bess (wey dem name so to distinguish am from di play). George Gershwin and Heyward spend di summer of 1934 for Folly Beach outside Charleston to write dis "folk opera", as Gershwin call am. Porgy and Bess dey considered as di Great American Opera and e dey widely performed. 