The term 'CHOIR SPACE' can be solved by the four-letter word 'LOFT'. A LOFT is a large, open space, usually located on the upper floor of a building. It is often used as an extra room or storage area. In the context of a choir, a LOFT is a large, open space where singers can practice and perform. It is typically located in a church or other religious building, and is designed to provide an acoustically-ideal environment for singing.