Linda Oh, born in Malaysia, raised in Australia, and currently living in New York, is a 25-year-old acoustic bassist with remarkable gifts. Entry, her debut, is a resounding statement of this fact, demonstrating conceptual maturity and prodigious instrumental strength. The trio setting suits her, as do her sidemen, trumpeter Ambrose Akinmusire and drummer Obed Calvaire. In this intimate ensemble, Oh reveals a conversational compositional voice and a finely tuned brand of collective improvisation that is spontaneous, but never muddled.