God has given us music so that above all it can lead us upwards. Music unites all qualities: it can exalt us, divert us, cheer us up, or break the hardest of hearts with the softest of its melancholy tones. But its principal task is to lead our thoughts to higher things, to elevate, even to make us tremble… The musical art often speaks in sounds more penetrating than the words of poetry, and takes hold of the most hidden crevices of the heart… Song elevates our being and leads us to the good and the true. If, however, music serves only as a diversion or as a kind of vain ostentation it is sinful and harmful.
Nietzsche wrote these lines two months before his fourteenth birthday – a detail doubly poignant when contrasted with the “vain ostentations” marketed to teenagers today. But his profound reverence for music never left him. Toward the end of his life, he immortalized it in an aphorism included in his 1889 book Twilight of the Idols, or, How to Philosophize with a Hammer:
What trifles constitute happiness! The sound of a bagpipe. Without music life would be a mistake.
Via Brain Pickings and Friedrich Nietzsche: A Philosophical Biography