Two icons of Martha’s Vineyard music were reunited at the Edgartown library Tuesday night: pianist David Crohan and the century-old Mason & Hamlin grand piano he donated to the library three years ago.

“This is a glorious piano, it really is,” said Mr. Crohan, noting that its owner before him was acclaimed cellist Caroline Worthington, another musician whose career expanded far beyond the Island.

The Mason & Hamlin repaid Mr. Crohan’s compliment with a rich, rounded piano sound that perfectly suited the acoustics in the library’s program room, where every seat was filled.

Playing, reminiscing and occasionally singing, Mr. Crohan celebrated his 60 summers of Island performances with a concert that flowed easily between repertoires and styles, with sly surprises along the way.

Mr. Crohan has played on the Vineyard for 60 summers. — Mark Alan Lovewell

Opening with Beethoven’s Moonlight sonata, he played all three movements of the romantic classic before observing, “This reminds me of Cole Porter.”

Instead of launching into a Porter tune, however, Mr. Crohan began playing the Moonlight’s famous first movement all over again. Just as the audience was beginning to look a little puzzled, a sleight-of-hand shift in Beethoven’s ostinato revealed the emerging melody of Night and Day, still in the rhythm of the Moonlight’s adagio sostenuto, to launch a medley of Cole Porter songs.

Medleys are Mr. Crohan’s murals, providing a wide canvas for him to explore a composer or theme.

On Tuesday, his set of George and Ira Gershwin songs wove shimmering keyboard flourishes around the show tunes before cresting with a solo rendition of George Gershwin’s Rhapsody in Blue that sparked a standing ovation.

Inspired by the babies in the all-ages audience, Mr. Crohan improvised a medley on the spot with songs like the Tin Pan Alley hit Babyface.

The library program room felt more like the Oak Bluffs Tabernacle as Mr. Crohan led the crowd in a patriotic sing-along of Battle Hymn of the Republic, America the Beautiful and the national anthem, which brought the audience to its feet once again.

“You bring me such joy, to come and play for you,” Mr. Crohan said at the end of the concert, which also included a dazzling Chopin polonaise.

“My 60 years here have been a huge, huge part of my life. May it continue,” Mr. Crohan said, setting off another round of applause.