Final answer:
An equivalent phrase to 'Aim Small, Miss Small' for 'Sing Louder' could be 'Project with Purpose,' encouraging singers to focus their vocal energy to achieve both louder and clearer sounds.
Step-by-step explanation:
The phrase "Aim Small, Miss Small" is a mantra for precision and focusing on a tiny target; when this concept is applied to the encouragement to Sing Louder, a similar phrase might be "Project with Purpose." This phrase embodies the idea of channeling one's vocal energy with intention and power to achieve a louder volume. When you project with purpose, you're not just singing louder indiscriminately; you're focusing your voice to reach further, ensuring your sound resonates clearly and strongly.
The lines 'Sound out, voices of young men! loudly and musically call me by my nighest name!' suggests a call for bold and confident expression. Therefore, to sing louder with such intention, as if calling out one's own name with pride and strength, can be related to the spirit behind 'Project with Purpose.'