Tuning depends on the sound source. If you are using a sound card/synth that can be tuned (Roland VSC, Creative SoundBlaster, and others), you may be able to tune it using the Master Tuning feature in Band-in-a-Box, under the GM menu. If this does not work, see your sound card/synth manufacturer for support. If you are using a synth module or keyboard, see the manual for tuning info.

If Band-in-a-Box is playing out of tune, and you are using a software synthesizer (rather than a hardware synth/module), your sound card itself could be out of tune. Test this by playing MIDI and wave files with Windows Media Player, outside of Band-in-a-Box. You will need to contact the computer or sound card manufacturer to resolve this problem.