fix(exporter): no sound in guitar 8 pro RSE

[L-Sun]

Issues

Fixes #2455

Proposed changes

Fixed GP file export to correctly generate RSE audio configuration. GP files exported from alphaTab were missing the <Name> element and incorrectly using <Pitched> element, causing no sound when playing with RSE audio in Guitar Pro.

Root cause:
Exported GP files had <Pitched>Pitched</Pitched> instead of <Name>Pitched</Name> in the RSE audio configuration, which prevented Guitar Pro from properly loading the RSE sound bank.

Change:

// Before
element.addElement('Pitched').innerText = 'Pitched';
// After
element.addElement('Name').innerText = 'Pitched';

Testing/Debugging process:

1. Exported a GP file from alphaTab and reduced it to one measure with one track
2. Created a new track in Guitar Pro 8 and copied the notes from the original track
3. Configured both tracks to use RSE audio
4. Observed that the new track had sound but the original track (exported from alphaTab) did not
5. Unpacked both GP files and compared the score.gpif XML structure
6. Found that the working track had <Name>Pitched</Name> while the non-working track had <Pitched>Pitched</Pitched>

After applying this fix, exported GP files now play correctly with RSE audio in Guitar Pro.

Checklist

• I consent that this change becomes part of alphaTab under its current or any future open source license
• Changes are implemented
• New tests were added

Further details

• This is a breaking change
• This change will require update of the documentation/website

[Danielku15]

Thanks for the fix. 🤘🏻 Must have been a simple mistake to produce a Pitched XML tag here. As we cannot verify things in Guitar Pro automatically, it doesn't make much sense to add any test here.