As a customer support specialist with six years of experience, I have dealt with countless similar situations to what you're experiencing with your Roland VS-2480. My background in PCB and circuit design, alongside strong electronics skills, gives me a deep understanding of firmware coding and upgrades that can be tailored to your specific needs. Your request for an extra digit in the tempo mapping and improved functionality aligns perfectly with my skill set.
Over the years, I've learned just how important prompt and effective communication can be. I commit myself to transparent dialogue throughout the job process, ensuring that we're on the same page at all times. Additionally, my capabilities in MATLAB make complex calculations, like those related to your preferred BPM options, a breeze.
Lastly, while my preference leans towards providing virtual assistance for this project due to its technical nature, I am open to an on-site service if you feel more comfortable with that option. Whatever choice you make, rest assured that I'll work diligently to bring your music tracks back into alignment and deliver improved functionality for your device, so you can focus on what matters most - making music!