For those unaware, the duo of tenor saxophonist Ivo Perelman and trumpeter Nate Wooley will release Polarity 4, a pathbreaking document of their long-running musical partnership, November 7th, 2025 on Burning Ambulance Music.

Each volume in the Polarity series has been different from the others, and different from anything else in Ivo Perelman’s vast discography.

Polarity 4 is no exception, as its nine tracks include the first-ever example of overdubbing in his catalog; the opening “(one)” features two Perelman’s and two Wooley’s improvising over and around each other.

Ivo Perelman has released well over 125 albums on labels like Enja, Clean Feed, Leo, Homestead, Cadence, ESP-Disk’ and more. A tireless improviser constantly in search of new sonic vistas and new opportunities to play with others, he is also a visual artist and jewelry designer.

Nate Wooley is a trumpeter, composer and improviser dedicated to sonic exploration and experimental music. In addition to composing and performing, he edited the magazine Sound American for 30 issues over 10 years, and his writing has been published in The Nation, the New York Review of Books, and elsewhere.

Polarity was one of the first two releases on Burning Ambulance Music in 2021, and subsequent volumes arrived in 2023 and 2024. Each installment has received rave reviews from outlets like The Wire, DownBeat, and the Free Jazz Blog.

Polarity 4 will be released on November 7th, 2025 digitally and as a limited edition of 500 CDs in heavy-duty gatefold mini-LP sleeves printed on textured paper, with artwork by Burning Ambulance Music co-founder I.A. Freeman.

1. (one)
2. (two)
3. (three)
4. (four)
5. (five)
6. (six)
7. (seven)
8. (eight)
9. (nine)

With Ivo Perelman and Nate Wooley once again pushing each other to peak performances, and since their peaks are high, so is the level of improvisation, they open on the effectively charged (one) and then brings us a flourishing static within (two), the playfully ambivalent (three) and then the skittish, yet emboldened (four) comes forth.

Along next is the sidewinding, one minute, cautious and pensive the next (five) which is in turn backed by the confidently interspaced (six), the veritably spacial in its makeup (seven), the new set rounding out on the strident fare of (eight), coming to a close on the lightly honed, cautiously-imbibed (nine).

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