North Central College hosts the sixth annual “Explore the Sound” concert series with performances at 7:30 p.m. Thursday and Friday, Feb. 20 and 21. The concert features some 130 choral and instrumental musicians in a seamlessly staged, theatrically lit performance from every part of Wentz Concert Hall. The performers include the Concert Choir, Women’s Chorale, Chamber Singers, Woodwind Quintet and Chamber String Ensemble with piano, string and jazz solos or small groups. The theme of this year’s concert, Of Spirits and Places, features music in a variety of languages—Balinese, German, Kalkadoon, Latin and English. The program consists of sacred, secular, jazz and pop music and student compositions or arrangements. All the musicians will join in a final piece, “Hope for Resolution,” which celebrates the theme in the context of Black History Month and the legacy of Nelson Mandela.