The ES2A and Acoustic Prediction celebrate their 20th. Anniversary (1995-2015) with Interviews to Mark Needham (Recording Engineer for Wicked Game/Chris Isaak); Mark Johnson (Playing For Change/Stand by me); Don Casale (Recording Engineer on In-A-Gadda-Da-Vida by Iron Butterfly); Michael Lang (Co-Producer of Woodstock 1969) and John Leimseider (Restorer of The Rolling Stones Mobile Reccording Studio).