Concert of Colors has made its name through the years with its world-music offerings, and performances this year will range from Nigerian Yoruba music (Toby Foyeh, July 13) to Jamaican reggae-fusion (Third World, July 14). Exiled musician Ramy Essam, whose hard rock was banned in his Egyptian homeland, will perform on July 13 and participate in a July 11 free-speech forum at the Arab American National Museum in Dearborn.