Adam Monroe's Electric Bass was sampled from a Yamaha BB424x electric bass guitar. The bass was modified so that individual pickups were wired to independent jacks, thus allowing for independent sampling of bridge and neck pickups. Volume and tone pots were bypassed, so resistors were wired in their place to minimize the "ice pick" sound of an electric bass without pots. The pickups were then run into individual Radial 48 active direct boxes and Grace 101 preamps which provided additional gain.
Sampling began by recording began with the target of recording 4 velocity layers with 5 note round-robin. The strings of the bass were kept relatively bright and fresh. Nearly the entire bass was sampled in this manner but the results were unsatisfactory, so the bass was re-sampled from the beginning with 10 velocity layers, 4-note round robin, and mellow strings.
Notes were gently plucked and fiercely attacked, so that playing low velocities generates a warm sound with subtle attack, well higher velocity notes become more percussive. By playing soft or hard, blending between neck and bridge pickups, and applying eq, a variety of tones can be achieved. However, the intention was to make a nice-sounding "utility" bass that blends easily into the mix, and to offer the user a standard go-to bass that can serve as a reference for other bass libraries.
Slide articulations were recorded in three-note round robin and can be triggered via the pitch wheel. Major and minor third slide up and slide downs were recorded for most strings, the exception being open E1 and whenever the slide would place the note beyond the recorded range of the bass. Slides were recorded at a tempo of 120 BPM. Like other notes, slides can be released.
Care was taken to find the best strings on which to sample notes. Strings were cleaned periodically in order to maintain a consistent sound.