What do these two small vertical lines on both sides of the first b mean?
What do the two small vertical lines on both sides of the first b mean and how should that note be played? What do these two small lines mean for the connection between the b in the first bar and the one in the second bar?
What do the two small vertical lines on both sides of the first b mean and how should that note be played? What do these two small lines mean for the connection between the b in the first bar and the one in the second bar?