# Note Tracks

From Audacity Development Manual
Note Tracks contain data from MIDI (and Allegro) files - these can be imported with the File > Import > MIDI command.

- Note Tracks can be useful to visually compare a given MIDI (or Allegro) file with a sampled audio file (such as WAV) of the same music.
- They can be cut-and-paste edited.
- They can then be exported using the File > Export Other> Export MIDI command. When exporting so as to overwrite an existing GRO, MID or MIDI file, the original file is renamed with ".bak" suffix, for example "keyboards.mid.bak".

## Contents

1. Sample Note track
2. Playing and editing Note tracks
3. Track Control Panel
   - Controls
   - Status Indicators
4. Vertical Scale
5. Note Track Dropdown Menu
6. Note Display

## A Note Track

Note tracks can be created by importing MIDI (or Allegro) files with File > Import > MIDI.

When a MIDI or Allegro is imported you will see all of the notes that are in the track, you may wish to use Vertical Zooming to zoom in to observe more detail. The image shown below is one where such vertical zooming has been used. Alternatively you can expand the Note Track vertically by clicking and dragging down on its bottom border.

Observe carefully the little black marks at the bottom right of the image. These indicate that there are additional notes in the Note Track below them. More notes can me made visible by using Vertical Zooming.

## Playing and editing Note tracks

### MIDI and Allegro playback

Note tracks containing MIDI data (or Allegro data) can now be played in Audacity. Loop Play and Play Cut Preview also work with Note tracks. But note that there will no use of the Playback meter while Note tracks are played. {{note|In order to achieve MIDI playback on Mac and Linux you will need to install, and run, additional software, a software synthesizer

### Editing Note Tracks

Only limited editing can be performed on Note tracks such as cutting, pasting and deleting.

## Track Control Panel

  | The Track Control Panel at the left of the note track has controls for this track. Left-clicking other than on a control performs track selection and move as follows. Clicking selects all this track's audio, deselecting all other tracks. Holding Shift while clicking selects all this track's audio, keeping already selected tracks selected. (keyboard: use Up or Down to give the track focus, then Enter to select it; hold Shift then use Up or Down to extend selection into another track. Read keyboard selection for more). Click-and-drag moves this track up or down when there are other tracks (keyboard: choose one of the "Move Track" commands in Note Track Dropdown Menu, opened by Shift + M on the currently focused track ).

### Controls

Close Button:

  Clicking this button will close the track, removing it from the project.

Note Track Dropdown Menu:

  Right-clicking the track name or using Shift + M on the currently focused track opens the Note Track Dropdown Menu giving options that affect this track only. Newly created tracks are named "Note Track".

Mute Button: Mute Click to silence this track when playing. Click again to unsilence.

| Tracks on which the Mute button is pressed are never exported.

Solo Button: The Solo can behave in two different ways depending on the setting made in Tracks Preferences.

- Multi-track: Default behavior, the "Multi-track" setting will suit those used to mixing desks and other professional audio software. Any number of tracks can be made solo so that they mix together. If any Solo button is down this overrides the Mute button. If on any occasion you want the Solo button to play only one track at a time (so that clicking it releases any other Solo buttons), hold down Shift when clicking Solo.
- Simple: selecting the "Simple" setting, is that clicking Solo on any track mutes all the other tracks. To solo more than one track, hold Shift down while clicking the Solo button on the additional tracks to be soloed. On the additional tracks that are soloed, the Solo button overrides the Mute button.

Channel toggles:

  Shows enabled channels, color coded to match the actual notes in the channels. Individual channels may be toggled by left-clicking, or all other channels can be muted/unmuted by right-clicking. Channel numbers start at 1; channel 10 reserved for percussion by the General MIDI specification.

Velocity Slider:

  Set the velocity offset for this track. Hold down the shift key while dragging to adjust the slider in finer increments. Double-click the slider to bring up a window where you can make precise adjustments or enter a velocity value.
  Velocity is in units of MIDI velocity, ranging from 1 (lowest) to 127 (highest). The offset from this slider (ranging from -50 to +50) is combined with each note's individual velocity to produce the resultant velocity.

Track Collapse button:

  Click on the chevron to make the track 'fold up' into a smaller size. Click again, or drag the lower edge of the track to restore the size.

### Status Indicators

- Sync-Lock Indicator:

  When present (at bottom-right of the Track Control Panel), indicates that this track is part of a Sync-Locked Track Group.

## Vertical Scale

  | The vertical scale displays note pitches like a piano's keys, ranging from the lowest to the highest possible MIDI notes (C -1 to G 9). Each octave is labeled at C (and the notes above are in that octave). The Vertical Scale can be used to control Vertical Zooming.

Observe carefully the little black marks above and below the colored notes. These indicate that there are additional notes in the Note Track above and below them. More notes can me made visible by using Vertical Zooming.

## Note Track Dropdown Menu

Right-clicking the note track's name (or using shortcut Shift + M or the keyboard Menu key when the note track has focus) opens the Note Track Dropdown Menu:

- Rename Track

  Displays the "Track Name" dialog where you can give the track a new name. Useful in multi-track projects to provide a visual indication of the content of each track.

- Up Octave and Down Octave'

  Moves the vertical scale up or down one octave.

### Moving Tracks

Tracks can be moved up and down using the menu items.

- Move Track Up: Moves track up.
- Move Track Down: Moves track down.
- Move Track to Top: Moves track to become the topmost track in the project.
- Move Track to Bottom: Moves track to become the bottom track in the project.

Note tracks can also be moved up or down by clicking between the controls in the track's Track Control Panel then dragging upwards or downwards.

## Note display

The notes from the MIDI sequence are displayed within the track.

Colors indicate the MIDI channels that the given note is in, and match those seen in the channel toggles. Each channel has an instrument assigned to it (not currently shown), although channels can change instruments partway through. Channel 10 (gray) is reserved by most MIDI devices for percussion. Some allegro files and MIDI files have more than 16 channels, in that case they will be displayed as a different gray.

Notes that are above or below the visible area will be drawn in black in the top or bottom rows (no matter how far above or below they are), to indicate that there is something to be scrolled to.

Blue vertical lines indicate measures. Note that some MIDI files do not have accurate tempo information, in which case the lines may not match actual measures in the song.

## Links

> Track Control Panel and Vertical Scale

> Label Tracks

|< Audio Tracks