W.F. Bach Fantasia C minor --- Strange Arpeggios

[rachmaspoz]

Hello everyone,

So I've started this new, quite strange, but very interesting piece. It is Wilhelm Friedemann Bach's Fantasia in C minor Falck 16. You can see the score here: https://sausage.whatbox.ca:15263/imglnks/usimg/7/75/IMSLP03846-WF_Bach_Fantasia_c_moll_-_F16.pdf
Repeatedly throughout the work, there are these passages (for instance starting at bar 55) where the composer writes "arpeggio".
Is there somebody who could give me some insight on how to play them?
Until now I've played them as follows: When the same chord is written twice, I play them as an "up-and-down" arpeggio, and when it is only written once, I play it as an "up" arpeggio.
But I'm not sure if it is the right way to play them.

Thank you

[faulty_damper]

When you get to "arpeggio" indicated for the chords, you perform them as arpeggios.  How you perform them is up to you because this is the fantasia part of the work.  You are given freedom to be creative as long as it's musically suited for the character.  "Allegro" just means to play it fast.  Note that it is still performed in time because there are measures.  If there are no bars, it suggests you can be free in time.

[rachmaspoz]

Thank you very much! You have helped me a great deal!