What's the meaning of "link" in the passage?
one Link = one second?
[
When the JAZZ HISTORY OF THE WORLD was over, girls were putting their
heads on men’s shoulders in a puppyish, convivial way, girls were
swooning backward playfully into men’s arms, even into groups,
knowing that someone would arrest their falls — but no one swooned
backward on Gatsby, and no French bob touched Gatsby’s shoulder,
and no singing quartets were formed with Gatsby’s head for one
link.
]

Ch3.
http://ebooks.adelaide.edu.au/f/fitzgerald/f_scott/gatsby/complete.html#chapter3

Question

What's the meaning of "link" in the passage?
one Link =  one second?
[
When the JAZZ HISTORY OF THE WORLD was over, girls were putting their
heads on men’s shoulders in a puppyish, convivial way, girls were
swooning backward playfully into men’s arms, even into groups,
knowing that someone would arrest their falls — but no one swooned
backward on Gatsby, and no French bob touched Gatsby’s shoulder,
and no singing quartets were formed with Gatsby’s head for one
link.
]

Ch3.
http://ebooks.adelaide.edu.au/f/fitzgerald/f_scott/gatsby/complete.html#chapter3

Answer

"no singing quartets were formed with Gatsby’s head for one "

A singing quarter = a group of four people who sing together

Each person in the quartet would be a link in the chain. However, since no one was ready to include Gatsby in their group, Gatsby never became a link of any quartet.

Answer

One link in the chain of four singers in a quartet.