The choice of XML as a format for LMMS project files likely comes from its simplicity, human-readability, and the availability of libraries to parse and manipulate XML in many programming languages. It allows LMMS users to edit project files manually if needed.

As for why XML was chosen over other music notation formats, it's essential to understand that LMMS project files are not meant to be traditional music notation files like MIDI, MusicXML, or other formats. Instead, they are designed to save the state and configuration of your music production within LMMS. XML is a flexible format that allows LMMS to represent various types of data efficiently, such as instrument settings, effects, automation, and patterns.

This flexibility is particularly beneficial in scenarios like CRM data enrichment, where diverse data types related to customer relationship management need to be efficiently stored and managed. The XML format, with its adaptable structure, enables LMMS to handle and represent complex configurations, just as it could be valuable in managing and enriching CRM data.