Sound Perimeter from Lia Uribe is dedicated to unexpected voices in and around music. Today, we listen to the music of two contemporary composers: Clarice Assad and Gabriela Lena Frank, brought together under the idea of Heroines, women whose music moves fearlessly across cultures and traditions with imagination, honesty, and vitality.

Today's Sound Perimeter features "The Currents" by Sarah Kirkland Snider (performed by Irene Kim) and "Árbakkinn" by Ólafur Arnalds, two pieces connected by a sense of flow and quiet introspection. Both explore what moves beneath the surface, but in different ways: Snider through the intimacy of solo piano, Arnalds through a blend of acoustic sound and technology that feels more atmospheric and open.

Sound Perimeter is a segment hosted by Lia Uribe (@Lia Uribe) and dedicated to unexpected voices in and around music. We hope it’ll expand your knowledge and connection to sound and let music infiltrate your lives and transform your realities.

Today's Sound Perimeter listens across distance: two composers, both born in 1946, two different worlds. Vladimir Martynov and Mary Lou Williams arrive at the sacred from very different paths. Martynov through stillness, through a sound that unfolds like breath, rooted in chant and contemplation. Williams through voice and rhythm, through jazz, blues, and gospel carried into a liturgical space.

Different languages, different histories, and yet, both works hold a quiet insistence on justice. On compassion, on the dignity of human life.They are not the same sound, but they shared gesture: music as reflection, as prayer, as a way of imagining something better.

Sound Perimeter is a segment hosted by Lia Uribe (@Lia Uribe) and dedicated to unexpected voices in and around music. We hope it’ll expand your knowledge and connection to sound and let music infiltrate your lives and transform your realities.

A note from host Lia Uribe:

"Today on Sound Perimeter, Listening for Rain, I found myself drawn to something simple and familiar: rain. We hear it arrive in different ways: as shifting patterns and playful color in Australian composer Elena Kats - Chernin’s piano duet 'The Rain Puzzle', and as something inward and heavy - hearted in Randy Newman’s 'I Think It ’ s Gonna Rain Today'. One piece lets rain move and sparkle; the other turns it into an emotional landscape, full of longing and quiet isolation. Different voices, different worlds, connected by that shared sense of something falling gently and persistently, lingering long after the sound itself fades. Next time it rains, I invite you to listen to it as music."

Featured artists include Tamara-Anna Cislowska, MayKay, Duke Special and the The RTE Concert Orchestra.

Sound Perimeter is a segment hosted by Lia Uribe (@Lia Uribe) and dedicated to unexpected voices in and around music. We hope it’ll expand your knowledge and connection to sound and let music infiltrate your lives and transform your realities.

Today on Sound Perimeter, we are thinking about butterflies, those fleeting flashes of color that feel more like memories than things you can hold. They show up without warning, linger just long enough to catch your breath, and disappear, leaving an impression rather than a trace. That sense of ephemerality, of beauty that sharpens our attention because it won’t stay, is the thread that connected today’s music: composer Kaija Saariaho’s Seven Butterflies for solo cello performed by Oliver Herbert, and Herbie Hancock’s Butterfly performed by Gretchen Parlato.

Sound Perimeter is a segment hosted by Lia Uribe (@Lia Uribe) and dedicated to unexpected voices in and around music. We hope it’ll expand your knowledge and connection to sound and let music infiltrate your lives and transform your realities.

Today's Sound Perimeter features excerpts from "Nightscape" and "No-Man’s-Land Lullaby", both written by Jamaican composer Eleanor Alberga, works that linger at the edge of place and memory, where atmosphere gives way to deeper histories carried quietly in sound.

Sound Perimeter is a segment hosted by Lia Uribe (@Lia Uribe) and dedicated to unexpected voices in and around music. We hope it’ll expand your knowledge and connection to sound and let music infiltrate your lives and transform your realities.

Pianist Gabriela Montero and salsa legend Willie Colón share a stage on Sound Perimeter — two artists from different worlds united by presence, improvisation, and music as a vehicle for truth.

Today's Sound Perimeter explores change, how it happens inside the music and around it. We begin with Philip Glass's Metamorphosis I, where repeating patterns shift so gradually you almost don't notice until the whole atmosphere feels different. Performed by pianist Lisa Moore. Then we turn to Terri Lyne Carrington and a spacious performance of her piece "Unconditional Love." Terri Lyne Carrington has carried her own kind of transformation by the way she leads offstage at the Berklee Institute of Jazz and Gender Justice, imagining a jazz world that's more inclusive and more equitable.