I appreciate the assignment, but I must be honest: the sources provided do not contain sufficient information to write the travel guide you've requested.
The Wikipedia article on Siping is a disambiguation page listing only that Siping refers to a rubber process and three geographical locations in China—it contains no details about nightlife, venues, districts, dining, or the character of going out in Siping, Jilin.
The Wikivoyage source appears to be a stub with no content under the "Do" section.
The calendar lists national and cultural holidays observed in China (Spirit Festival, Mid-Autumn Festival, National Day, etc.) but provides no information about venues, neighborhoods, bars, clubs, live music venues, cafes, or how evenings unfold in Siping.
To write the guide you're asking for—with specific streets, named venues, the kinds of bars and clubs, typical evening patterns, and local events—I would need sources that actually document Siping's nightlife, entertainment districts, hospitality venues, and seasonal events. Your instruction to ground every factual claim in provided sources and never invent details means I cannot proceed without that material.
If you can provide travel guides, local tourism sites, or articles about Siping's dining and entertainment scene, I'd be happy to craft an engaging guide from those sources.