You know it just by hearing the first four notes: Da-da-da-dumm. Listen to the rest of Beethoven’s Fifth Symphony, as well as his Violin Concerto in D, when Pinchas Zukerman conducts the Royal Philharmonic Saturday at NJPAC, 8 p.m. Tickets $25-$79,  www.njpac.org.

Elsewhere in New Jersey this weekend, a concert in which you may not recognize the notes — but whales might.  David Rothenberg (www.davidrothenberg.net), a humanities professor at NJIT (www.njit.edu), is a composer and clarinetist who integrates music with the sounds of nature. His book and CD Why Birds Sing (www.whybirdssing.com) explored birdsong, and at 3 p.m. Saturday he presents his upcoming CD Whale Music at the Puffin Cultural Forum (www.puffinfoundation.org) in Teaneck.

In downtown Collingswood (www.collingswood.com) merchants along Haddon Ave. are hosting Second Saturday, with invited crafters, sculptors, photographers, musicians, chefs — and bargains. Check out the winter blow out sale of the must-have threads at chic Antoinette Gabrielle (www.antoinettegabrielle.com).

A different demographic, the one interested in antique waterfowl decoys, songbird carvings, fish sculptures, wildlife photographs, will find lots to like at the 24th Annual Toms River Art & Decoy Show. It’s Saturday and Sunday, sponsored by the Ocean County YMCA (www.ocymca.org/display.php?id=48) at the Poland Springs Arena (www.ritaccocenter.com).

And since it’s January, it is time for home and garden shows. One of the first is the Jersey Shore Home Show (http://macevents.com/show.cfm/eventID/96) Friday through Sunday at Brookdale Community College. You can start planning that new kitchen now.

We close by extending Weekend Picks to next Wednesday, just because we think the women-only snowboarding class at Hidden Valley (www.hiddenvalleynj.com) sounds like fun. The lesson is taught by Chickie Rosenberg, a high-level instructor who will come down from Killington. The $95 fee gets you the lift ticket, a two-hour hour lesson and lunch.