Consider designing lower-end stations for these purposes. Recommend units that have removable shelving with open backs for easy access. Special need is the efficient use of space for a music keyboard as well as typewriter keyboard. The recent development of LCD, flat screens can save on space and can allow more create use of furniture. Such displays have distinct advantages but are more costly and may require special interfaces with the computers to take advantage of the digital capability.
Chairs ought to have good back support and be on wheels.
Electrical and Lighting. Plan on a least one 6-outlet powerstrip for every workstation. Lower level lighting is ideal. Consider surge protection. Ensure adequate and stable power.