MuseScore is a free cross-platform WYSIWYG music notation program, that offers a cost-effective alternative to professional programs such as Sibelius and Finale.
You can print beautifully engraved sheet music or save it as PDF or MIDI file.

Some highlights:

• WYSIWYG, notes are entered on a "virtual note sheet"
• Unlimited number of staves
• Up to four voices per staff
• Easy and fast note entry with your keyboard, mouse, or MIDI keyboard
• Integrated sequencer and FluidSynth software synthesizer
• Import and export of MusicXML and Standard MIDI Files
• Available for Windows, Mac and Linux
• Translated in 35 languages
• GNU GPL licensed

We all run into this problem: You have a part to play but you need to insert a few bars of a line borrowed from another instrument, or you need to transpose the Eb Horn for your F Horn, or you need to move Bass Baritone to Treble Clef Bb, all sorts of little tasks that shouldn't need hundreds of dollars worth of software to do them, and they don't, because MuseScore does all of this and more, for free.

But is MuseScore up to the job? I think so: I was reminded of MuseScore a few days ago reading about the Petrucci Music Library plan to convert the complete Goldberg Variations into a free and open format for download and study; I figure if MuseScore is ready for Bach, it will pretty much do anything our ensemble might require.

And there's more, much more, because MuseScore is "free software", meaning it isn't owned by anyone, it is owned, built, improved and supported directly by the people who use it everyday. That's you and me and thousands of other people; it's like a great software barn-raising, you don't buy free software so much as you join it, you become part of a greater community of musicians, developers and developer-musicians who all work together to solve the problems, help each other, teach each other, address the issues, set the goals and add the features. So the software stays focused and current, and, the best part, you get a say in the matter because you're part of the team; everyone is welcome because that's how it is done, and that fact alone is more than worth the price of admission :)

Many times in the education environment it is not conducive to use YouTube because of what is posted in the comment sections or what appears in the suggestions and playlists.  YouTube does not make this an easy task to do directly from their site.

This tutorial will help you solve that problem by learning how to easily remove the comments by implementing a couple of different solutions.

YouTube is a great resource for showing your music students example performances of the pieces you are working on, for showing authentic performances in particular genres and cultural styles and for illuminating even the most esoteric technique tips on the most obscure instruments, but yes, it can sometimes assume the viewer is an adult mind who will make adult choices on the links offered along the side of the video frame. So what to do?

Here's a techie teaching tip from our friends at MusTech.Net, click on the thumbnail for the video (on YouTube) explaining how to set up the musicroom computer so that you can seamlessly mine the rich resources of that archive without subjecting your students to the very often less than informative comments attached or the sometimes (ahem) curious choices offered in the sidebar as suggestions.