Techapella wasane wanda masu fasahar kampanin SilconValley,California.Wanda ya fara wannan nunin shine Laolee Xiong a 2013 da Aaron Roan, da wadanda suka samar da facebook wato (The Vocal Network and Google's Googapella), a jere masu Cappella sune suke tsara wanda shirya-shiryen tare da prodosan Sing-Off, Deke Sharon. Masu zuwa wannan shagalin sun hada Googapella da Alphabeat (wanda ya kunshi ma'aikatan Google), Vocal Network (ma'aikatan Facebook),Pintunes (ma'aikatan Pinterest), InTune (ma'aikatan LinkedIn), Songbirds (ma'aikatan Twitter), The Square Registers (ma'aikatan Square), Syncopation (ma'aikatan Dropbox), AirBnBeats (ma'aikatan AirBnB), Keynotes (ma'aikatan Apple), Chromotones (ma'aikatan 23andMe), da Scalesforce (ma'aikatan Salesforce). Lee, Wendy (2015-12-07). "Techies tune up for 'Pitch Perfect'-style a cappella showcase". San Francisco Chronicle. Retrieved 2018-10-14. Justus, Matthew (2017-12-17). "Watch Silicon Valley Nerds Face Off A Capella". Vice News. Retrieved 2018-10-15.