MAD LIBrarians: 1 p.m. Saturday, Boulder Public Library, 1001 Arapahoe Ave., Boulder. Whenever this team of buttoned-up librarians hears about a fantastic new book, they go wild. In each episode, buttons go flying as the MAD LIBrarians craft a new book title based on audience suggestions, and then they act, sing and shout that book out full-blast. Free, 303-351-2382, betc.org.

Intro to Essential Oils and Perfume program: 1:30 p.m. Saturday, Meadows Branch Library, 4800 Baseline Road, Boulder. Learn about essential oils and create a unique perfume. Participants will discuss base, mid and top notes as well as scent families and possible essential oil pairings. Relax and unwind, for teens and adults. Registration required. calendar.boulderlibrary.org.

Mackenzie Rae & Buckshot Moon and Good Music Medicine at Velvet Elk Lounge: 7:30 p.m. Saturday, The Velvet Elk Lounge, 2037 13th St., Boulder. Mackenzie Rae & Buckshot Moon are an Americana band based in Boulder. From tender ballads to raucous rockabilly, they tell stories through rich harmonies, nuanced instrumentals and a unique balance of high energy and sensitivity. Good Music Medicine is an original roots rock band based in Boulder playing venues along the Front Range. $19, 303-993-8743, etix.com.

Play Magic the Gathering: 12:30 p.m. Sunday, Meadows Branch Library, 4800 Baseline Road, Boulder. Attend a monthly Magic the Gathering club, for beginner and experienced players alike. Go over the rules, how to build a deck and provide cards to beginner players. Experienced players can bring their own decks and play against seasoned opponents. Playing Magic helps build skills like reading comprehension, problem solving and math. It is also a great way to socialize with others. calendar.boulderlibrary.org.

Bubbly Bath Fizzies and Soap craft: 2:30 p.m. Sunday, Boulder Public Library, 1001 Arapahoe Ave., Boulder. Get squeaky-clean with chemistry by creating bath fizzies. Not just that, but attendees will be making soap by using fun molds, too. All materials will be provided. For grades 2-5. Registration required. calendar.boulderlibrary.org.

Takács Quartet performance: 4 p.m. Sunday, Grusin Music Hall (C112), Imig Music Building, 1020 18th St., Boulder. Celebrating its 50th anniversary, the Grammy-winning Takács Quartet’s dynamic and insightful performances have established the ensemble as one of the most sought-after chamber music groups. The group’s unique blend of technical brilliance and emotional depth creates an unforgettable musical performance. Experience the quartet that has enchanted Boulder audiences for over three decades and counting. $45-$56, 303-492-8008, cupresents.org.