Struggling to cope with a multimillion-dollar deficit, the Detroit Symphony Orchestra has cut way back on the concerts it plays at the Meadow Brook Music Festival, where the DSO has traditionally played 15 summer concerts over 5 weeks. In January, the orchestra completed a mid-contract renegotiation with its musicians, who agreed to temporary pay cuts and furlough weeks in an effort to balance the books, but the Meadow Brook cuts will still leave a 3-week gap in the summer schedule, which could be filled by a statewide tour, or an expansion of the DSO’s other summer activities.