The music of southern Germany warms a February night when violinists, Susanna Ogata and Anna Griffes team up with Doug Kelley, viola da gamba, and Andrus Madsen, music director and harpsichord to play music from the Stuttgart and Munich courts by Johann Christoph Pez, Giuseppe Brescianello, and Evaristo Dall'Abaco. (pictured: interior of Ludwigsburg Palace, built…