This is how things work when you’re an Expert Orchestral Music Composer and Producer:
Companies will come/answer, and tell you:
"We’re very impressed with your Resume/Experience, so…
Look I want you to build a Gothic CATHEDRAL… in about… Three Weeks??
And I will pay you: One Peanut, and a Grain of Rice… Deal??
You must understand that we’re a Start-Up,
we don’t have the means to retribute you properly,
hence you will have to work for us pretty much illegally, because with the scarce Peanut-money we’re gonna give you, you will never be able to even declare your earnings, or do pretty much anything else other than die of Malnourishment…
So yeah, you have to basically be our Slave,
and work for us for Free in one of the most Complex and Energy/Time Demanding fields that Exist…"
And I as a Composer/Producer need to say Yes,
and go and dedicate/sacrifice Months and Months, if not Years of my life,
working Full Time in whatever Ridiculous yet Megalomaniac project they’ve got in mind,
sitting in a chair grinding my brain, and fighting the highest technical and creative difficulties ever, in a rush, and in exchange for basically Nothing…
Because yeah, they’re a Start-Up!
They’re just beginning, but that doesn’t stop them from pretending to make in 6 months a Complete and Perfect 3D Online MMORPG with Fantasy and Sci-fi thematic, with which they will basically Conquer the World, and which people will promptly buy and make them billionaires like in no-time.
But don’t worry, because even tho they’re total Noobs without any experience,
they have Studied a $hit-course in a modern Videogame-design School/Academy…
And now after one year? they’re absolute EXPERTS and MOGULS of the Videogame creation field… 
And ALAS → ALL of this is 100% TRUE … 
And that’s if you’re LUCKY!
-And also the sad thing is, this doesn’t only happen/apply to noobs and Start-Ups,
but also with real BIG International consolidated Companies which are supposed to have more experience/understanding of how things really work…
(For not mentioning the very expensive investment one needs have done,
or do for having all the necessary equipment/means…
We’re talking about a nice 8/16 core PC with 32-64GB Ram, a Pro-Audio Interface and Pro-Monitoring gear like Headphones/Monitors, a nice Keayboard/Instruments, and a Mountain of Audio Software and super Expensive state-of-the art Realist instrument Libraries…
and that’s thousands and Thousands of €/$ of investment…
Or the years and years of experience and total Dedication that becoming a Proper Orchestral Music Composer and Producer requires…
First one needs to dedicate at least 10 years of constant Study and Dedication, in order to become an Expert in Music Theory/Harmony, and be proficient/cultured enough as a musician with your instrument, normally Piano/Guitar.
And then maybe 5-10 years more of experience Composing/Producing Soundtracks,
and learning/mastering all the technical matters that Music and Audio Production involve/require. You’ll ever hardy find a Composer/Producer Worth its Name who’s not in his late 20’s or early-mid 30’s)