I can see this being useful for young children who need access to information but whose parents don't want them in creepy pockets of the internet.
NomenCumLitteris
Gold and silver.
To give the most generic advice to all who read this: make a living by making the lives of others liveable. Many are determined to study X and have a career of Y. This sometimes works out. Many will repeatedly try to have career Y their whole life due to a fixation even if it isn't right for them at any or all those times. Some of the most lucrative success stories have been people who saw someone else in need and helped them, someone else or a subset of the population who had a problem that nobody came around to fix yet. A problem you had no prior affiliation with. Opportunity Z may be wildly unrelated to your training and/or career path, but, it may help more people moreso than your career Y. And then, your X, Y and Z skills can compound when you find your next opportunity.
In real world application, increased efficiency doesn't decrease energy usage nor decrease labor required to live. Tech has gotten more efficient since the industrial revolution, but demand for technology has increased exponentially, energy use is astronomical, and workers still work more hours.
I imagine you missed the nuances of what he describes as the human elements of music. Humans fluctuate tempo. Humans can play music with other humans impromptu based on common repertoire or musical templates, themes, and styles. Humans can call and response based on riffs or quotes. Music and dance are quite literally on the few cultural pillars of humanity across all cultures and time for its social uses. Often, all this music software is used in solitude, never to be utilized in a social way. New music tech and music instruments are just tools. It is about how one uses them.