Final answer:
The student needs to write out four-part SATB chords using crotchets. Each chord is represented by a Roman numeral indicating its position within a key, and proper voice-leading principles should be followed to ensure a harmonious arrangement.
Step-by-step explanation:
The student's question involves writing out four-part chords for SATB (Soprano, Alto, Tenor, Bass) voices using crotchets, guided by Roman numerals that represent chords. In music theory, Roman numerals are used to denote chords in a progression relative to the key, with uppercase numerals representing major chords and lowercase depicting minor chords. When arranging four-part harmonies, one must ensure that all voices are within a comfortable singing range and avoid creating parallels of perfect fifths and octaves to maintain proper voice independence.
To begin, one should first identify the key and write out the scale. Then, assign each scale degree a Roman numeral. Chord I correspond to the first scale degree, II to the second, and so on.
For example, in the key of C major, chord I (C-E-G) entails playing C in the bass, E in the tenor, G in the alto, and C in the soprano, although inversions and note repetitions may vary in actual analysis and practice. This SATB arrangement would fulfill the student's task using crotchets, which are quarter notes, where each member of the chord would be played or sung for the duration of one beat within a 4/4-time signature.