Music notations

[Megan]

How is this section played with the triple bars , please.

[Quijote]

How is this section played with the triple bars , please.

Depends on the tempo (or metronome) marking but to all intents and purposes it would be played as a tremolo.
https://www.google.com/search?client...olo+definition

[Enrique]

It is as follows:



The note group must be repeated until filling the measure. The same with the staff below. This, as Philip said, is a tremolo.

[Megan]

Thank you both for help, how does the tremolo differ from a rolled chord?

[Chris]

Thank you both for help, how does the tremolo differ from a rolled chord?

In a rolled chord, you only play each note once and hold them. In a tremolo, you rapidly alternate between the lower note and the upper note(s) - like a trill.