Octave range in a string quartet and harpsichord

[supersnake52]

So im doing a ground bass composition for my music GCSE. I need to know the pitch range for a cello, a violin, a viola and a harpsichord.

I can find out how many octaves they can play but not the specific octaves.

Thanks.

[PaleMelanesian]

All from Wikipedia:

The compass of the violin is from G3 (G below middle C) to the highest note of the modern piano.

The viola's four strings are tuned in fifths: the C an octave below middle C is the lowest, with G, D and A above it. This tuning is exactly one fifth below the violin, so that they have three strings in common—G, D, and A—and is one octave above the cello.

The A string is tuned to the pitch A3 (just below middle C), the D string a fifth lower at D3, the G string a fifth below that at G2, and the C string tuned to C2 (two octaves lower than middle C). The strings are one octave lower than the viola, and one octave plus one fifth lower than the violin.

Less useful:

Generally, earlier harpsichords have smaller ranges and later ones larger, though there are frequent exceptions. In general, the largest harpsichords have a range of just over five octaves and the smallest have under four. Usually, the shortest keyboards were given extended range in the bass using the method of the "short octave". Tuning Pitch in nowadays' practice is taken often at a=415 Hz, a semitone below modern standard concert pitch of a=440 Hz. An accepted exception is for French baroque repertoire which is often performed from a=392 Hz, yet again one semitone lower. No doubt this is overly simplified, but common practice. Historically, tuning would commence on c or f.