Which of the following notation software is known for its user-friendly notational input?

MagicScore Maestro is recognized for its user-friendly notational input, making it an appealing choice for both novice and experienced users. The intuitive interface and straightforward approach to note entry allow users to create compositions with ease, streamlining the music notation process. This software often employs a more accessible design and features that simplify tasks like entering notes, adding dynamics, and formatting scores, which can be particularly beneficial for users who are focused on composition rather than technical details.

In contrast, while Finale and Sibelius are powerful notation software that musicians widely use, they can have steeper learning curves due to their extensive features and capabilities. Users may find these programs more complex as they offer an abundance of tools for advanced notation and orchestration, which can overwhelm new users. Avid Protools, primarily a digital audio workstation (DAW), is not focused on traditional music notation and is more directed at audio recording and production, making it less relevant in the context of notation input compared to the other options.