Tremolo In Ravel's Forlane

[robatsch]

I'm unsure of how to execute what I believe is a tremolo in the Forlane of Ravel's Le Tombeau de Couperin.  It occurs around the 70th bar.  The two notes G# and E are to be played together, with a triple line separating them from an F#.  Is the tremolo executed as a trill on the E and F# or is it an alternation between the entire G#, E chord and the F#?  I would greatly appreciate any clarification.

Michael

[michael_c]

The tremolo is played alternating between the two note chord G#-E and the F#.

(You'd probably got a quicker reply to this question if you had posted it in the Student's corner)