Chords and chord combinations all have their individual characteristics. Some cause satisfaction, for instance, others unrest. When a chord of the dominant seventh is heard, the educated musician knows that a solution is demanded. The unspoiled ear and taste instinctively feel something unfinished, and are disturbed if it be not followed by a return to the key chord. Where the faculties are dormant or petrified, its significance will be unobserved.
The story is told of a young lady whose musical education had been utterly hollow and false, but who, having been overwhelmed with flattery for her voice and her singing, was deluded into a belief that she was destined to shine as a star on the operatic stage. She consulted the famous basso, Karl Formes, who good-naturedly had her sing for him. He perceived at once that she possessed neither striking talent nor adequate training.
As a supreme test he struck on the piano a chord of the dominant seventh, and asked the young aspirant for dramatic glory what she thought it meant. Presuming it to be incumbent upon a prospective prima donna to have uppermost in her mind the grand passion, she replied, in a sentimental tone, "Love!" Promptly Karl Formes sounded the solution to the chord. "There is your answer," quoth he. "I ask a question, and it is thought I speak of love. Go home, my good girl, and seek some other avocation. You have a fair voice, but you are tone-deaf. You can never make a musician."
A favorite motto of the piano teacher Leschetitzky is, "Think ten times before you play once." If this rule were more generally observed we should have better interpreters of music. A great composition should completely occupy mind and heart before it is attacked by fingers or voice. In that case it would be analyzed as to its form, its tonal structure, its harmonic relations, its phrasing and rhythms, and its musical intention would become luminous. The interpreter would understand where accents and other indications of expression should occur and why they should so occur, and would be able, in however feeble a way, to find and reveal the true heart music that lies hidden in the notes.
It is never too early in a course of music study to consider the requirements of musical expression. Persistent observance of them will inevitably quicken the artistic sense. The rules to which they have given rise are for the most part simple and easily explained. For obvious reasons, all musical interpretation is expected to imitate song as closely as possible. The human voice, the primitive musical instrument, in moments of excitement, ascends to a higher pitch, increasing in intensity of tone as it sweeps upward. Consequently every progression from lower to higher tones, whether played or sung, demands a crescendo unless some plainly denoted characteristic of the music calls for different treatment. A descending passage, as a return to tranquillity, requires a decrescendo.