The tool bar is located at the very top, underneath the Main menu bar.
The speed-bar buttons are arranged in 2 rows. The top row contains buttons that handle the project, the bottom row has buttons that toggle the different LMMS GUIs.
The six buttons in the top row deal with opening and saving files.
The Create New Project button creates a new project.
The Create New Project From Template button creates a new project using a selected template.
The Open Existing Project button opens an existing project file from your LMMS Working Directory (You are also able to point to other directories).
The Recently Opened Project button lists files that you have saved recently, you can then choose a project to open from this list.
The Save Current Project button saves the current project. (This will behave like "Save As" if you have yet to save the current project.)
The Export Current Project button is a shortcut to exports of the current project as a .wav, .ogg, or .mp3 file (.flac is also avaliable for export as of 1.3).
This opens the same dialog box as the file menu's Export option.
The seven buttons in the second row show or hide various workspace windows. These are toggle buttons for the workspace windows, allowing you to work in a kind of "tabbed" workspace.
All Windows have a margin from which a Context Menu can be opened:
Stay On Top keeps that window on top of all other windows.
Maximize "fullscreens" that window if possible.
Move makes the window follow the cursor until Left Click is pressed.
Size resizes the window (following the cursor) until Left Click is pressed.
The toggle buttons are:
The Song-Editor toggle button shows/hides the Song Editor.
The Beat+Bassline Editor button shows/hides the Beat+Bassline Editor.
The Piano Roll Editor Window button shows/hides the Piano Roll Editor. (Must be linked to a Piano Roll Clip before it can be used)
The Automation Window button shows/hides the global-song Automation Editor window.
The FX-Mixer toggle-button shows/hides the FX-Mixer.
The Project Notes button shows/hides the Project Notes window.
The Controller-rack toggle button shows/hides the Controller-rack.
The current tempo is shown in numerals. This is a standard control, so it can be changed by dragging up and down inside it. It can also be automated like any other parameter.
The timer shows the time it would take to play from the beginning of the song to the current position of play-head. Clicking on the timer toggles it to instead show how many bars, beats and ticks that have passed. (Ticks subdivide beats, depending on the time-signature you have chosen.)
The default time signature is 4/4. You can change this by holding the left mouse button and dragging up or down. The Numerator dictates the number of beats per measure, and the Denominator dictates the value (Eighth, Sixteenth, etc) of each beat.
To the right of the tempo control are the master volume and pitch controls.
The Master Volume control sets the master volume for the entire project.
The Master Pitch control transposes all instruments except those with the Master Pitch toggle disabled.
The Wave/CPU display shows both the current waveform being played and the current CPU usage of all LMMS instruments, effects and sequencing. You can turn the wave display off or on by left-clicking it. For the waveform display color; Green indicates no clipping, Orange indicates clipping is a risk, and Red indicates clipping.
The second row are made out of toggle buttons for the individual windows, from left to right:
Beat & Bassline Editor (F6)
As of LMMS 1.3, the shortcuts are:
Beat & Bassline Editor (Ctrl+2)