Bob James's Nautilus: how an end-of-session leftover became one of hip hop's most used samples

One mix-up is worth clearing out of the way first: it is not “Nautilus” behind Run-D.M.C.’s “Peter Piper”, but a different Bob James track, “Take Me to the Mardi Gras”. “Nautilus” has its own story, and in hip hop it travels mostly through another Run-D.M.C. song, “Beats to the Rhyme”, released in 1988. It deserves to be told on its own terms, not folded into its neighbor’s.

A two-bar bass line, recorded last

“Nautilus” closes One, Bob James’s first album under his own name, released in 1974 on Creed Taylor’s CTI label and recorded at Van Gelder Studio in Englewood Cliffs, with Rudy Van Gelder at the board. Gary King plays bass and Idris Muhammad drums on the session, with James on keyboards and a string arrangement filling out the sound. But “Nautilus” did not come together like the rest of the record: it was the last thing recorded, and it arrived almost by accident. James himself tells it plainly: “It was the last track we recorded and it was recorded last minute. I had a little bass line and everything else we improvised in the studio.” The intended centerpiece of the album was “Feel Like Makin’ Love”; “Nautilus” ended up buried at the close of side B, the least prominent spot an LP has to offer.

What happens inside the track

The title did not come from James but from Taylor: a synthesizer sound in the intro reminded the producer of a submarine submerging, and the name stuck. Over that synth backdrop moves Gary King’s bass, the element that would later grab the ear of every crate-digger looking for it: a short, hypnotic line that lends itself to being isolated into two-bar loops. Looking back on it decades later, James describes the effect as “a groove, a mysterious, almost cinematic sound that comes out when it’s sampled, it was easy to loop in two-bar chunks.” There is no virtuosity on display here, only an atmosphere, suspended between CTI’s jazz-funk sheen and something darker, closer to a film score.

From B-side filler to raw material

The earliest documented sample dates to 1986, with Ultramagnetic MC’s “Bait”. In 1988 came Run-D.M.C.’s “Beats to the Rhyme”, and around the same time Slick Rick interpolated the riff in “Children’s Story”. Over the following years came Eric B. & Rakim, Naughty by Nature (on “O.P.P.”, 1991), Jeru the Damaja, A Tribe Called Quest, and, in 1996, Ghostface Killah on “Daytona 500”. Over time, “Nautilus” has been sampled in hundreds of songs. James says he never refused to clear a use; he was only unhappy when the track was used without permission. Otherwise, he describes having “a lot of respect for the architectural aspect of production in hip hop” and enjoying “the bizarre and unpredictable nature of it.”

It is a trajectory that flips the original pecking order on its head. The track meant as filler at the end of a side became the reference point; the two-bar bass line born by accident in the studio became a shared vocabulary across generations of producers. Listening to “Nautilus” today next to “Beats to the Rhyme” means hearing the same rhythmic cell in two different worlds: one that generates it without knowing it, the other that recognizes it and makes it its own.