MakeMusic Cloud uses some of that code—don't work for them so I have no idea how much.

Here's the latest news:

Updates

8/27/2024 @ 5:30 PM ET:

Clarifications on the initial announcement

1.  Finale authorization will remain available indefinitely: Please note that future OS changes can still impact your ability to use Finale on new devices. 
2. Finale v27 to be included with Dorico Pro Crossgrades: We are currently working on a solution for all customers who have purchased or intend to purchase a Dorico Pro crossgrade to be able to download Finale v27. This will ensure that you can export your Finale files using MusicXML 4.0, the most robust version of MusicXML available. Thank you for your patience, we will provide more information soon.

You'll have to contact MM directly to see if a refund is available. 

You could open a ticket and ask.. I believe they offer a 14-day period, but in this case they may make an exception. (I may be wrong on the time limit).  However.. you could also evaluate the cost of the license and then cross grade to Dorico.  If it's cheaper you may STILL come out ahead by just getting the crossgrade.

In my case, I my try to go it with Muse Score and/or Notion.  I'm not writing symphonies anymore, I just really do either contemporary choir music with piano accompaniment and mostly lead sheets for worship music at church.   This doesn't require extensive engraving.  I don't know if I want to re-invest my time learning all over again.  My biggest quibble (non-notation related) with Dorico is it seems to require at miminal, two helper apps installed on your computer from Steinberg.  It's like their version of an app store.  I'd love to know if there is a way to install Dorico without it.  It seems rather intrusive to run one piece of sotware from the Steinberg family. 

Between MuseScore 4.x and Notion 6... MuseScore is kind of de facto, Lol.

I do like Notion Mobile, though, particularly on devices with native/good pen input (Surface, Galaxy S Ultra/Note, iPad Air/Pro, etc.).

The only advantage Notion ever had was its stock sound libraries, but that is completely moot since MuseScore 4 released.

Dorico Pro Requires:

• Dorico Pro
• HALion Sonic 7
• Groove Agent SE 5
• Steinberg Activation Manager
• Steinberg Library Manager
• Steinberg MediaBay
• Steinberg Built-in ASIO Driver (Scenario-Dependent, Installed with the Application)

So, basically 2 Virtual Instruments and related sound content along with 3 helper applications/services.

If you install Steinberg Download Assistant, it will also install the Install Assistant to allow it to do unattended installations/updates and [unfortunately] the eLicense Control Center which - at this point - should be an optional installation.

A generic ASIO driver if you want to use it on a laptop in a mobile scenario without having to bolt an audio interface onto it (Windows-only, because Steinberg doesn't support Windows Audio... on macOS you just use CoreAudio).

I generally don't have an issue with helper applications so long as:

1. Background Services are kept to a minimum
2. They don't require Architectural Emulation (e.g. Rosetta 2)
3. There aren't any forced installation of deprecated components that I have zero need/use for (e.g. eLCC)
4. They are easy to remove (more of a macOS issue... Windows has Add/Remove Programs)