Beam's annotation tools are divided into two categories: creation tools for drawing and adding text, and editing tools for selecting and erasing annotations.
Creation Tools
Pencil
— Simulates drawing with a pencil. Double-tap the tool to open settings, where you can increase thickness to simulate a pen or marker.Highlighter
— Simulates highlighting. Double-tap the tool to open settings, where you can adjust the opacity slider to change the transparency.Corrector
— Simulates whiting out music notation. All other annotation layers display above corrected areas. Double-tap the tool to adjust thickness.Text
— Adds a text box to the page. Drag the corners to resize it, or drag the text itself to reposition it.
Editing Tools
Lasso
— Draw around annotations to select them. Selected annotations can then be duplicated
, deleted
, or moved to a different layer
.Eraser
— Erases drawn annotations. Double-tap the tool to adjust thickness.Trash
— Removes all drawn or text annotations from either the current page or the entire song.
Custom Tools 
Each user can create up to 12 Custom Tools, configured as either a pen or highlighter in any color, opacity, and thickness. Custom Tools are saved per user, so they're available across your library without needing to be recreated. For more on creating and customizing them, see Create and use Custom Tools.