Often, chance works in mysterious ways. That’s how a glance at a painting by Ferdos Maleki in a Magog art gallery transported double bassist Ali Kian Yazdanfar to that artist’s studio in San Diego. It is another Maleki painting, Gratitude III, that graces the cover of the bassist’s new album, Sayeh-Roshan, released this month on the Leaf Music label. Like this painting, the album conceals unforgettable encounters and exchanges across its 18 tracks, the fruit of several years of work that has finally materialized. “Several desires are at the origin of the album: to show another side of the double…