This weekend in the arts: Spreckels Organ Society; Jonny Alexander at Swish; 50 years of San Diego Dance Theater; Word Up! returns to The Old Globe; Nathan Hubbard pairs Dorothea Grossman poetry with sound; Space 4 Art open studios; and “Retelling/Recontar” at Art Produce. Jonny Alexander: ‘Heavy Levity’ Visual art Courtesy of the artistArtist Jonny Alexander is pictured with his painting, “Heavy Levity” (and the subject matter). The work will be on view at Swish Projects beginning Mar. 18, 2022. Swish Projects will show a solo exhibition of new works by Jonny Alexander, called “Heavy Levity.” This exhibition is centered around a series of large paintings on canvas, contrasting natural…