The following Audio folio calls prepare instruments.

• CloseAudioFolio() Closes the Audio folio.
• OpenAudioFolio() Opens the Audio folio.

The following calls can be used to open and close and Audio folio:

• AllocInstrument() Allocates an instrument using a template.
• CreateInsTemplate() Generic template creation function.
• CreateInstrument() Creates an instrument using a template.
• DefineInsTemplate() Creates an instrument template from a .dsp file.
• DeleteInstrument() Frees an instrument and its resources allocated by CreateInstrument().
• FreeInstrument() Frees an instrument and its resources.
• LoadInsTemplate() Loads template for creating instruments.
• LoadInstrument() Loads instrument by name.
• UnloadInsTemplate() Unloads an instrument template.
• UnloadInstrument() Frees an instrument and unloads its template.

The following calls can be used to load and create instruments:

The following calls can be used to tune items and instruments:

• CreateTuning() Creates a tuning item.
• DeleteTuning() Deletes a tuning.
• TuneInsTemplate() Applies the specified tuning to an instrument template.
• TuneInstrument() Applies the specified tuning to an instrument.

The following calls can be used to handle samples:

• AttachSample() Connects sample to instrument's FIFO.
• CreateSample() Generic sample creation function.
• LoadSample() Loads an AIFF or AIFC sample from file.
• ScanSample() Loads a truncated sample file.
• DebugSample() Prints sample information for debugging.
• DetachSample() Disconnects sample from instrument.
• UnloadSample() Deletes a sample and frees its resources.

The following calls are used to change attributes of audio items:

• GetAudioItemInfo() Gets information about an audio item.
• SetAudioItemInfo() Sets parameters of an audio item.

The following calls are used to handle envelopes:

• AttachEnvelope() Attaches an envelope to an instrument and creates an attachment item.
• CreateEnvelope() Creates an envelope for a sample or cue.
• DeleteEnvelope() Deletes an envelope.
• DetachEnvelope>() Detaches an envelope from an instrument.

The following call is used to connect attachments:

• LinkAttachments()Connects attachments for sequential playback.

The following calls are used to connect and disconnect instruments:

• ConnectInstruments() Patches an output to an input.
• DisconnectInstruments() Disconnects one instrument from another.

The following calls are used to create and delete delay lines:

• CreateDelayLine() Creates a delay for echoes and reverberations.
• DeleteDelayLine() Deletes a delay line.

The following calls are used to handle knobs:

• GetKnobName() Queries name of indexed knob.
• GrabKnob() Connects a task to an instrument controller.
• GetNumKnobs() Finds how many knobs an instrument has.
• ReleaseKnob() Releases a task from a knob it has grabbed.
• TweakKnob() Changes the value of a knob.
• TweakRawKnob() Changes the value of a knob using a raw value.

The following calls are used to allocate and free amplitude:

• AllocAmplitude() Allocates amplitude from available system amplitude.
• FreeAmplitude() Inverse of AllocAmplitude().