This is [...] a very large collection of Frank Zappa spoken word releases. It's called the GSW Project. GSW stands for Gigantic Spoken Word. There will be some music in there but there won't be any live concerts in the GSW Project. They consist of radio interviews and journalist reporter type personal interviews. During the radio interviews sometimes music was played as background or added before the broadcast in between questions and answers. Sometimes FZ acts as D.J., plays records from his collection and talks to the radio audience.
But the main focus of this series is FZ interviews which to me is as interesting as his music.
All these audio books are available for download at zappateers tracker. There are in total 33 volumes. If nobody is currently seeding a volume you are looking for, please let me know ( afka (at) afka.net) and I will help you.