I’m a big fan of recurring donations for small non-profits, and I think there are a lot of people like me who want to help and are in it for the long haul. Nothing more annoying than getting annual snail mail pitches – I’ve been a member for 500 years, just take my money and keep my card valid, please! –Sustainer Eric Buehrens

A lot goes into making a Radius Ensemble concert the unique and rewarding musical experience that it is: Our commitment to daring and creative programming; the passion and artistry of Ensemble members; the engagement and enthusiasm of our concertgoers. Just as important to this experience is the financial support we receive from people like you. For an organization like Radius, every contribution counts, and each and every donor to Radius is truly a patron of the Arts.

The work we do wouldn’t be possible without the ongoing generosity of our most loyal donors. With that idea in mind, we’ve created the Sustainers program. Along with your annual contribution of $300 ($500 for a couple), or your monthly contribution of $25 ($40 per couple), you will enjoy the following benefits:

  • Bring-a-friend coupons, redeemable online by 6pm the day of the concert
  • Invitation to house concerts and special events throughout the year
  • Tickets donated on your behalf to area college students and less privileged youth, including students at our local public high school through our partnership with the Cambridge Rindge & Latin School.
  • A Radius mug, CD or other exclusive SWAG!


More than just a way to acknowledge those whose generosity and support sustain our work, the Sustainers is also an invitation to join the Radius community. Become a Sustainer today and help us maintain a strong and vital platform for vibrant, adventurous classical music.

If you prefer to make your sustaining donation by check, no problem! Our mailing address is 45 Pine St., Concord, MA 01742. Make your check payable to Radius Ensemble and put “Sustainer” in the memo field.

Please purchase your tickets or subscriptions separately