Adagio. In music, "adagio" means "to play slowly, to be at ease." Architectural spaces can also be "played" slowly and at ease. These are spaces to linger in, to enjoy as if time didn't exist. Soft colors and spare furnishings allow us to relax and take in the serene environment. Of course, some rooms are like some songs, made to be a due (for two).
Dolce. Simply put, "dolce" means "sweetly" and is used to instruct the musician to play tenderly and with a light touch. In architecture, dolce is the care, detail and craftsmanship used to create a building or space or object. Some places, like some music, can go beyond simply dolce and be experienced dolce con affetto (with affection).
Legato. Quite the opposite of staccato, legato has the notes "tied together" such that one moves without separation into the next. While architecture depends on articulation and distinction (staccato) to create distinct rooms and lessen the overall scale of a building, architects use elements such as trim to tie and bind the pieces together.
Ma non troppo. Musically "but not too much," as in allegro ma non troppo (fast but not too fast). The idea of "but not too much" is certainly applicable to architectural and interior design. It's the notion that not the entire room should be of the same color, nor every shelf be filled to the brim. That knowing when to say when is important.
Marcato. This is when a particular piece (note, cord or passage in music) is played louder and more forcibly. This is akin to the accent wall in architectural design. Maybe another color or another material, the piece that is played marcato takes center stage and enriches the space it inhabits.
Pastorale. In both music and architecture, this refers to a composition that is peaceful and simple such as basic cubic volumes arranged against a flat, green lawn. No adornment, just a bucolic milieu into which simple forms are inserted.
Sforzando. Architecturally and musically loud, strong and with force. It can be a roof that's lit for emphasis and then extends out into space aggressively, having all the characteristics of a musical passage that's played sforzando.
Staccato. In music, staccato is making each note "brief and detached," much in the way that articulation does in architecture. Though they may all combine into a coherent whole, each piece is detached and separate from the surrounding pieces. So while the spaces are connected, each is distinct from the other, as are the objects within the spaces.
Vivace. While in music "vivace" refers to a composition that is very lively and up-tempo, in architecture it can refer to a design where there's a lot going on. Stairs, cable-suspended bridges, spaces that are connected vertically and horizontally, natural and artificial lighting that comes at us from many directions as well as all the objects that inhabit the space create an architecture that is decidedly vivace, maybe even vivacissimo (even livelier).