Seven things across Westchester County and Rockland County this weekend, Friday, November 13, through Sunday, November 15, from the river in Yonkers to a chapel in Sparkill, each with the detail you need to decide.

Friday night: a New Orleans brass band in Peekskill

The Dirty Dozen Brass Band, the New Orleans group that has been fusing brass-band tradition with funk and bebop for more than 45 years, plays the Paramount Hudson Valley, 1008 Brown Street in Peekskill, on Friday, November 13, at 8 p.m. On Saturday the same stage hosts Floydian Trip, a Pink Floyd tribute that recreates the band's touring-era music and visuals, also at 8 p.m. Tickets through the Paramount's event pages or the box office at 914-739-0039. The Peekskill Metro-North station on the Hudson Line is a short walk downhill from the theater.

Saturday: Diwali at the Hudson River Museum

The Hudson River Museum, 511 Warburton Avenue in Yonkers, gives Saturday, November 14, to its Diwali Festival from 11 a.m. to 5 p.m. The day opens with Echoes of Light, a musical program with Rohan Roots, at 11; a Bollywood performance and interactive workshop follows at 1 p.m., Kathak dance at 2, Bharatanatyam at 3 and Indian classical music at 4. From noon to 4 the family workshops run henna, paint-your-own diya, rangoli pattern making and sari draping, and museum highlights tours leave at 1 and 3. Admission is through the museum; (914) 963-4550.

Saturday: MUJI opens in White Plains

MUJI's first White Plains store opens Saturday at 11 a.m. at The Westchester, 125 Westchester Avenue, with a ribbon cutting and taiko drumming, free gift bags while they last, a tote bag and a lucky draw with a $50 purchase, and food from Don Carvajal Cafe, Ice Cream Social, Badass Bagel and Mandy Bean. The celebration continues Sunday. Register free on Eventbrite for a chance at one of five $100 gift cards.

Saturday: the Great Leaf Hunt finale in Rye

The Friends of Rye Nature Center wrap up this fall's Great Leaf Hunt with a free celebration from 12:30 to 1:30 p.m. Saturday at 873 Boston Post Road: winners announced, prizes awarded, outdoor activities for families. Register on the center's events page. The trails are open sunrise to sunset for anyone who wants to stay.

Saturday: a wreath, or a yoga mat, at Lasdon

Lasdon Public Gardens, the county's garden at 2610 Route 35 in Katonah, has a Harvest in Bloom floral workshop Saturday from 10 a.m. to noon, then on Sunday, November 15, Yoga in the Garden from 9 to 10:30 a.m., a Holiday Wreath Workshop from 10:30 a.m. to 1 p.m. and a Mindful Autumn Walk from 2:30 to 4 p.m. Each is registered separately through the gardens' events page. The park is open 8 a.m. to 4 p.m.

Saturday night: Oscar Wilde in Tappan, Cyrille Aimee in Mamaroneck

The Antrim Playhouse, the community theater at 32 Old Tappan Road in Tappan, gives The Importance of Being Earnest at 8 p.m. Saturday, with a 3 p.m. matinee listed for Sunday, November 22. Across the river, the Emelin Theatre at 153 Library Lane in Mamaroneck has Grammy-nominated vocalist Cyrille Aimee on Saturday night, a program of jazz and global rhythm; tickets are sold only through emelin.org, box office (914) 698-0098.

Sunday afternoon: all six Brandenburgs in Sparkill

Bridgemusik performs Bach's Brandenburg Concertos on Sunday, November 15, from 4 to 5:30 p.m. at Sacred Heart Chapel, 175 Route 340 in Sparkill. Details are on Explore Rockland's calendar.

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