New Photos from Creedence LP Box Mastering Sessions Mastering of the final two Creedence Clearwater Revival studio albums for release on 180-gram LP by Analogue Productions. Photos taken at AcousTech Mastering by RTI vinyl pressing Wizard Rick Hashimoto. Here are Kevin Gray and I cutting "Hey Tonight" from Pendulum. The little black and yellow tape box by Kevin's right arm is the "MRL" tape. The tones on this are used to adjust the tape machine for neutral playback. None of the Creedence tapes have the proper set up tones on them, so we set up the machine and then tweak and set azmuth by ear (for every Damn song). Arggh!