Admission is free, with donations accepted for 2010 summer series, which will begin in late May.
Japanese pianist Nariaki Sugiura and Korean cellist Yeon-Ji Yun are organizing Sunday's program "Music from Around the World." Other performers include Russian violinist Matvey Lapin and pianist Katya Kramer and soprano Barbara Paré and pianist John Clodfelter.
"It's fantastic that these six performers, who have become audience favorites through their appearances on the summer series, are donating their services to help raise money for the series," said DePauw music professor Eric Edberg, the festival's artistic director.
"Most of the festival's reserve funds were stolen by Gobin's former secretary. We don't know yet how much will be recovered or replaced. Last week's concert raised over $800," he added.
The Midwinter Warmup concerts are being sponsored in part by Chief's South By Southwest Restaurant of Greencastle.
"We're very grateful that Chief's has become a big supporter of the festival," Edberg said.