On Friday and Saturday, June 4 and 5, the Belfast Boathouse once again will resound with mellow and jazzy popular tunes from the golden age of American popular music as the Penobscot Bay Singers end their 36th season with the ever-popular pops concert. The concert will begin 7 p.m. both nights.

George Gershwin is the focus of this year’s concert. A wide range of his memorable tunes, including several that are less well known, have been arranged for the group by Rick Dostie, the chorus’ music director. These are from Gershwin’s Broadway shows “Lady Be Good, “Strike up the Band” and “Of Thee I Sing,” all written in the early 1930s.

Gershwin’s last work, the complex, powerfully eloquent and much loved opera “Porgy and Bess,”  first performed in 1935, also will be represented in the concert. Rounding out the program will be another Dostie arrangement of 1930s and ’40s favorites, a handful of solos and, a perennial audience favorite, “Chattanooga ChooChoo.”

The Pen Bay Singers enjoy letting loose a bit from the classical and liturgical works of the Christmas and spring concert repertoire to  sing swing tunes, especially of such talented composers as Gershwin. The close harmonies and complex rhythms of popular music are not necessarily any easier to learn, however, and learning to swing after keeping a close eye and ear on the frequently changing time signatures of Randall Thompson, for instance, can be tough. At a recent rehearsal, Rick encouraged the singers by saying “You used to swing like a rusty gate, but now you’re getting it.” That means a lot coming from him, as he is as well known for his jazz piano as he is for his accomplishments at the organ and in directing.

Accompanying Dostie, who will conduct from the keyboard, will be the members of his jazz trio: Bob Roman on bass; and Sam Gilbert on drums.

Tickets are $12 and are will be available at the door. Refreshments will be offered at the break. The Belfast Boathouse is on the water at 34 Commercial St.

The Penobscot Bay Singers is a not-for-profit corporation offering three concerts each year in Waldo County, primarily in Belfast. The chorus welcomes new singer/members via a voice placement audition. The chorus is supported by member dues, concert income and donations from the community. For more information, write PBS, P.O. Box 5, Belfast, ME 04915.

VillageSoup Art/Entertainment Editor Dagney Ernest can be reached at 207-594-4401 or by e-mail to dernest@villagesoup.com.