IN PRAISE OF STEVENS The Metropolitan Opera Guild and Opera News honor mezzo soprano Rise Stevens. Pianist Van Cliburn and mezzo soprano Jennifer Larmore serve as co-hosts, and the event features appearances by Barbara Cook, Denyce Graves, Kitty Carlisle Har t, Anna Moffo, and Patrice Munsel. Tonight, 7:30 p.m., Jazz at Lincoln Center, Frederick P. Rose Hall, Time Warner Center, Broadway at 60th Street, 212-769-7009, $75 general, $50 members.

MIDTOWN MEDIEVAL Midtown Concerts presents a short afternoon program of music from 12th- and 13th-century Spain and France. The medieval-music ensemble Machicoti, which consists of vocalists Amy Bartram, Grace Check, and Beth Cullinane, performs the concert. Wednesday, 1:15 p.m., Church of St. Francis of Assisi, 135 W. 31st St., between Sixth and Seventh avenues, 212-967-9157, free.

TOBIN’S TUNES English vocalist and songwriter Christine Tobin performs at Joe’s Pub, accompanied by guitarist Phil Robson, bassist Dave Whitford, and jazz drummer Billy Hart. Ms. Tobin’s sound blends blues, folk, and jazz influences. Wednesday, 9:30 p.m., Joe’s Pub, 425 Lafayette St. at Astor Place, 212-539-8778, $15.

TWO QUARTETS The Avalon String Quartet performs two programs of string quartets by Schonberg, Beethoven, and Webern. The quartet consists of violinisst Blaise Magniere and Marie Wang, violist Anthony Devroye, and cellist Sumire Kudo. Thursday and Saturday, 8 p.m., Kaufman Center, Merkin Concert Hall, 129 W. 67th St. at Broadway, 212-501-3330, $20 general, $10 seniors and students, $32 both concerts.

EYE ON THE SPARROW Rejoicensemble’s 10th annual celebration of the life of Martin Luther King Jr. features David Hurd’s “In Honor of Martin,” a five-movement work with text based on the Jamie McKenzie poem “Standing Tall.” Also on the program: the world premiere of Carl Maultsby’s “Eye of the Sparrow,” the musical component of a slide show of paintings by artist Karen Fitzgerald. Sunday, 3 p.m., St. Bartholomew’s Church, Park Avenue and 51 Street, 212-378-0248, $20 general, $15 seniors and students.

KING HONORS KING Blues guitarist B.B. King performs a tribute to Martin Luther King. Sunday, 7 p.m., Lehman Center for the Performing Arts, 250 Bedford Park Boulevard West, between Paul and Goulden avenues, Bronx, 718-960-8833, $35-$100.

To submit an event for consideration for the Calendar, please wire the particulars to calendar@nysun.com, placing the date of the event in the subject line.