(missing some sharps), digital soundfonts often use "Viena" or similar software to pitch-shift and create a fully Preset Tuning
Because .sf2 files are an older format, most modern DAWs (like FL Studio, Ableton Live, or Logic Pro) cannot read them natively without a bridge. To play them, you need a free dedicated soundfont player VST. music box soundfont
Finding a "realistic" music box can be challenging due to overtone issues in lower registers. Below are some of the most frequently recommended and high-quality options: (missing some sharps), digital soundfonts often use "Viena"
Depending on whether you want a clean, realistic sound or a retro, lo-fi aesthetic, these are the top recommended files: (missing some sharps)