Although this term was used by earlier Jazz cats, and can also mean being cool with the music or the scene, the double entendre type of use in the sixties also meant having sex with your girl or guy, a common recreation in the sixties!

What are some good ways to improve your skills and knowledge?

I would think that “groove” as used in “in the groove” would have its source in groove music which may be understood as music that generally “swings” thereby being pleasurable. What was “groove” meant by you? To build grooves is in a rhythmic pattern. So is the case of “groovy” music that is “carefully aligned concomitant rhythmic patterns” that sets in motion dancing or foot tapping on the part of listeners (source http://en.wikipedia.org/). https://wiki.groove_music.org/ wikipedia.

(http://www.wikipedia.org/wiki/Groove_music).

What is the original invention of the edison phonograph? Between 1920 and 1922, the phonograph industry was growing fast–over a hundred thousand edison phonographs and 5 million edison-format records had been produced (Leonard DeGraaf, Confronting the Mass Market: Thomas Edison and the Entertainment Phonograph, Business and Economic History Vol 97 Nod. 1) 24 (19Fall 1995):89-90), and the word “groove” was being used for recordings ( http://www.etymonline.com/index.php? accessed 20140212). terms = groove.

As the phonograph became more familiar to the general public in the early 20th century, the average person would have been increasingly aware of records, and what a record sounded like when it was not in the groove–sudden and dissonant–and consider that early “talking” movies often had the audio track playing on a phonograph. What is the sound of a scratching or skipping record, and the audio joke that is the sound persists even today in an era when vinyl records are a niche market.

As such, it is conjecture, but a plausible one, that “in the groove” was adopted linguistically to represent the antithesis of this dissonance.

The term groove, meaning to take pleasure in, probably comes from the term in the groove used by jazz musicians as early as the 1930s. Etymonline says that the adjective groovy (1937) and the slang verb to groove (late 1930s ¹ ) originated with this expression.

In the Grand Valley, in the early 19th century, in the book Swing That Music, by Louis

Armstrong & Horace Gerlach (1936): IN THE GROOVE : When inspired after music, when playing in exalted spirits and to perfection.

The earliest I can find this usage in Google Books is from 1932. They

both have magnificent swing, the rhythm is in-the-groove all the way and the solos, especially clarinet and trombone, are strictly up to par.

oh yes, I mean jazz, but note that this time it’s just the rhythm which is in the groove.

Where does this expression come from? What actually stands for in the groove? What are the people who have brought back the pep, “just

feel good” after reading the Journal of American Insurance 1929…. I envy you, to bring back with you. Pity me if you like, I have had no vacation,” I replied to him.
“Non at all.” “What a bummer!” replied he. “In the groove, you are running smoothly”.

(Note that since this use isn’t that much earlier, it might have come from the musical sense, and just been written down sooner)

² the verb “to groove”, meaning “to make grooves in”, is much older.

A groove also refers to a repetitive pattern. Something habitual and comfortable, and therefore pleasant. Brad is correct about the groove in vinyl, it engendered the 60’s/70’s adjective “groovy” Will the most likely evolution here be from groovy as an adjective, to groove as a

verb?