A promoter of concerts in Portland and Bangor will go on trial Oct. 30 on a charge of misdemeanor domestic violence assault.

Alexander Gray appeared Tuesday in Cumberland County Superior Court in Portland for a brief hearing before Justice Nancy Mills to set the trial date. Mills also told Gray that he will have to continue to abide by his bail rules, including a ban on contact with the woman he is accused of assaulting in March.

Gray founded Waterfront Concerts, which stages shows in Portland and Bangor. He primarily lives in Old Town but also has a condo in Portland.

It was there that Gray allegedly knocked down a woman, briefly choked her and hit her head against the floor. The woman was described as Gray’s longtime girlfriend.

She told police the two had argued during a night out with friends on March 11 and the dispute continued after they returned to the condominium, where Gray demanded to see the woman’s cellphone, according to police reports. She refused, police said, and began to pack a bag, saying she didn’t feel safe staying with Gray that night.

Gray grabbed at her purse, she said, trying to get the keys to an apartment the two shared, and then kicked the woman’s legs out from under her, knocking her to the floor. According to court documents, Gray then put one hand around the woman’s throat and used his other to get the keys and then allegedly banged her head against the floor repeatedly.

The woman left the condo and was taken to Maine Medical Center, where police said they saw swelling and redness on one side of her head. She also told police that her head and jaw hurt and it was painful to talk.

Gray was arrested in Old Town on March 12 and then brought to Portland, where he was booked at the Cumberland County Jail.

His attorney, Gerard P. Conley Jr., said Tuesday that he has been talking to county prosecutors about a possible deal, but indicated that they hadn’t reached agreement Monday. Most misdemeanor charges are settled in plea deals. The charge Gray faces carries a penalty of up to 364 days in jail and a fine of up to $2,000.

Edward D. Murphy can be contacted at 791-6465

emurphy@pressherald.com