Opus 90s: Dick Zukerman

Cousin Dick Zukerman shares thoughts on great Opus 90 works in the repertoire:

90 is a good year.  As one experienced  in its impact and reality, I am pleased to contribute to a senior cousin’s ascendency to our exalted plateau.  Here goes
 
Dvorak Opus 90 is the Dumky Trio.   What a great way to start the year!

Beethoven was there earlier with his piano sonata #27, another Opus 90.  {fortunately missing “Les Adieux” by 1]).  Too difficult to play, with my waning piano technique which was never there.

Schubert managed a very decent “Impromptu” under the all important #90

But Brahms hits the jackpot with His Third Symphony.  A Massive Opus 90  good for 47 minutes of intense birthday celebration.

Happy Birthday, Joe.
 
-Dick

Celebrating Joe Auslander's 90th Birthday!

Joe Auslander turns 90 on September 10, 2020.

In this space,  let's share memories, photographs, and stories about Joe--across nine decades. Brief and longer reminiscences or anecdotes, humorous and serious, are all equally welcome.  Although in our strange quarantined era, we can't have a large face-to-face celebration, we can gather together in this virtual space to reflect and celebrate.

For the mathematically inclined among Joe's friends, any mathematical observations on the number "90" would  be gratefully received.

To start things off:

--If I correctly remember the lessons of my youth, 90 is one  of the only five known unitary perfect numbers because it is an integer which is the sum of its positive proper unitary divisors,  (not including the number itself) That is to say, 90 = 1 + 2 + 5 + 9 + 10 + 18 + 45!     Joe had his first unitary perfect number birthday in 1938 at age 6,  but hasn't had a unitary perfect number birthday since 1990, at age sixty. I don't believe he will have another such birthday until he turns 87,360 in the year 89, 290!

--90 degrees constitutes a "right" angle, although perhaps Dad, as a left-handed progressive, would be more appreciative of a "left" angle? 

--The number ninety, that is to say nine times ten,  (3x3x) x (2x5), can be expressed  as three times the product of the three lowest primes (2x3x5). 

Anything else about 90 of note?

Please send along all recollections, images, and other appropriate materials about Joe as the spirit moves you!