The Addictive Keys Mark One add-on instrument is based on a Fender Rhodes Mk. 1 electric piano. The Rhodes Mk. 1 has been the most popular electric piano for more than four decades and is heard on countless hit records. Rhodes pianos can vary in sound, and this particular instrument was selected for its unmistakable warmth and intimacy.

While the instrument's line output can be recorded "direct," it is often played through an amplifier to add some crunch and character. For this recording, a MusicMan 112 RD Fifty 1x12" was used. Different recording setups can be mixed and matched to give you endless sound design options.

With the tube combo set up in a large recording room, vintage microphones was positioned at both close and far away perspective capturing the amp close-up and with natural ambience. To add variety, three mics were positioned next up to the speaker; a dynamic, a tube condenser and a ribbon microphone. One floor and one room microphone setup were used for the option of adding depth and ambience to the recordings.

In addition to the acoustical recordings, two line signals were also recorded: One "direct" through high-voltage DI box and another through the classic Roland Dimension D analog stereo chorus.