If you want to try a song in a different key, or you suddenly discover that the singer's voice sounds better in a lower register, SONAR's real-time transposition effect will help you adjust in a big hurry. It's also good for less-obvious applications, such as taking a shaker part and changing it to a tambourine and then a cabasa until you find the ideal sound. It also features some powerful tools for changing scales and modes that can help you with creative blocks.