The perennial example of an electric guitar soloing in a big band setting is "Solo Flight" (1941) with Benny Goodman's big band https://www.youtube.com/watch?v=

The perennial example of an electric guitar soloing in a big band setting is "Solo Flight" (1941) with Benny Goodman's big band https://www.youtube.com/watch?v=IID2JPnGF00 https://www.youtube.com/watch?v=IID2JPnGF00. Charlie Christian is featured all the way through and in that sense the tune was also a departure from the usual format for big band arrangements.