Here are the URL parameters that control functionality in the Soundslice embed.
scroll_type=1to change the algorithm to always ensure the currently playing and the next bar are both visible on the screen at all times; in practice, this results in the playhead being near the bottom of the screen.
horiz=1). By default, horizontal scrolling displays one “page” of music at a time. Use
hscroll_type=2to keep the playhead fixed at the left edge of the player, while the notation scrolls.