🌙There’s "chill," and then there’s Grant Green’s Idle Moments . Recorded in November 1963, the 15-minute title track is essentially a masterclass in patience.

"RMU 1787" likely refers to a specialized internal tracking number or a specific vintage dealer code rather than a standard label release. Rarity ("rar"): Original Blue Note pressings of Idle Moments

Originally intended to be a shorter 7-minute piece, it grew to 15 minutes by accident when Green and the other soloists mistakenly doubled their solo lengths. Producer Alfred Lion decided to keep the take due to its exceptional quality.

Why the RMU rip specifically? Because vinyl pressing quality collapsed after the 1970s.

: Green achieved his signature warm sound by maximizing the midrange on his amplifier while turning off the bass and treble.

This article is a deep dive into why this specific digital artifact—the RMU 1787 rip of Idle Moments —is considered the gold standard, what makes Grant Green’s 1963 masterpiece so enduring, and how to navigate the murky waters of high-resolution jazz archiving.

Here is the controversial reality: Blue Note has never officially released the exact mastering chain found on the RMU 1787 rip. The official Tidal or Apple Music versions are or RVG Edition remasters—different EQ curves, different transfers.