I totally agree with these responses.
Tuning is essential not only in the beginning of the rehearsal as you well know, but also at various points throughout. The idea is to get on the same page (or in the same ballpark) intonation-wise and stay there throughout the rehearsal. It has not been uncommon for quartets of which I've been a member to stop every so often to re-tune in rehearsals, especially between pieces.
I prefer tuning with everyone playing their own written F (for the same reason that Bezozzi mentioned), so that open intervals P4 and P5 happen (for the same reason as Rousseau as mentioned by Hakukani).
During the rehearsal, listen actively to yourself and others. Make sure (number one) that your own intervals are correct, and that you're also in tune with the other members of the ensemble. This requires a LOT of communication throughout, so keep it respectful yet honest. Hold each other accountable without being antagonistic (or defensive), and you should have some busy and fulfilling meetings.
It is also very important to have an accomplished coach or a pair of trusted ears in a critical listening role present on at least a weekly basis.
Angel
Tuning is essential not only in the beginning of the rehearsal as you well know, but also at various points throughout. The idea is to get on the same page (or in the same ballpark) intonation-wise and stay there throughout the rehearsal. It has not been uncommon for quartets of which I've been a member to stop every so often to re-tune in rehearsals, especially between pieces.
I prefer tuning with everyone playing their own written F (for the same reason that Bezozzi mentioned), so that open intervals P4 and P5 happen (for the same reason as Rousseau as mentioned by Hakukani).
During the rehearsal, listen actively to yourself and others. Make sure (number one) that your own intervals are correct, and that you're also in tune with the other members of the ensemble. This requires a LOT of communication throughout, so keep it respectful yet honest. Hold each other accountable without being antagonistic (or defensive), and you should have some busy and fulfilling meetings.
It is also very important to have an accomplished coach or a pair of trusted ears in a critical listening role present on at least a weekly basis.
Angel