The track you edit with the Pencil tool is chosen by toggling the Pencil tool on the track you want to edit. In the MIDI Editor, there’s a pencil tool button in the MIDI tracks area (upper left). Clicking that pencil button for the track you want makes that track the active target for Pencil actions. When you draw, you’ll be adding or editing notes on that selected track. Other options don’t set the target track: the patch selector changes a instrument, not which tool edits which track; enabling all tracks in preferences doesn’t choose a specific track to edit; dragging the pencil across the piano roll is the drawing action itself, not the method of selecting which track to affect.

This feature relies on tempo and meter to map your audio to the session’s timing so you can select the exact beat-aligned portion to analyze. It will use the current session tempo and the chosen meter to snap the selection to the grid for precise analysis. Why the best answer fits: it clarifies that the capture process uses both the session tempo and the selected meter, but it only works properly when the session tempo isn’t aligned with the audio region. When the tempo already matches the audio cleanly, there isn’t a tempo misalignment for the tool to anchor to, so the capture may not produce a useful or accurate selection. In other words, a mismatch between the session tempo and the audio creates the right conditions for the capture to determine the intended beat-based region. Why other possibilities don’t fit: the option that says it works only if tempos match is incorrect because the capture tool relies on a tempo discrepancy to define boundaries. The idea that it always works regardless of tempo ignores the dependence on tempo alignment. The option about using global tempo to set a new tempo describes a different function altogether and not the selection-capture behavior.

In Pro Tools, you relocate the song start by using a direct command and by using the timeline rulers to pick the spot you want. The Move Song Start command is the exact action that changes the starting point of the session. You get to that by going to the Event menu, then Time Operations, and choosing Move Song Start. The Tempo and Beats rulers (shown via View > Rulers) are the visual tools that help you identify the exact bar/beat where you want the start to be. They don’t move the start by themselves, but they let you place your cursor at the precise spot you want before you apply the Move Song Start command to commit that new start time. So you have two pathways: visually locating the desired start with the rulers, and then executing the move with the dedicated command. The other menu paths don’t provide the necessary combination to reposition the song start.

The key idea here is how timing and dynamics are controlled when drawing MIDI with the Line Pencil tool. The grid increment determines the time spacing of the notes you place. If you choose a small grid (like a sixteenth or thirty-second note), notes will snap to those finer time divisions, giving you precise rhythm placement. A larger grid (like a quarter note) makes notes land only on bigger time steps, which can produce a more stepped, groove-like feel. In short, changing the grid increment sets the desired time intervals at which notes can be placed. Velocity, on the other hand, controls how hard each note plays. In the MIDI editor, velocity is specified in the velocity lane for each note. After drawing notes with the Line Pencil tool, you can adjust the velocity value for individual notes (or multiple notes) via the velocity lane to shape dynamics and attack. The Line Pencil tool handles the note placement, but the velocity lane handles how loud or soft each note sounds.

Docked versus standalone window behavior is what this tests. In Pro Tools, you can open the MIDI Editor in two ways. Using the View menu places the MIDI Editor as a docked pane inside the Edit window, so it shares the same frame and resizes with the Edit window. Using the Window menu opens the MIDI Editor in a separate, floating window that can be moved around or placed on another monitor. This distinction helps you choose between a compact, integrated workspace and a larger, independent editing area. The other descriptions don’t match how Pro Tools handles windows: the View option doesn’t create a separate floating window, and the Window option doesn’t dock the editor inside the Edit window.