Shell said
Oh my goodness Diane!!!  It's incredible how you can play all those instruments so beautifully and mix together.  So talented.  Is that a whistle flute?

 

Do you have a post anywhere on how you combine the vids into one?

Glad you liked it! That's a tin whistle, which is commonly used in Irish music.

As for combining the videos, I do it pretty much the same way Pierre makes his group project videos. The key is having something to play along with (in-ear) to ensure that all the parts are played at the same tempo so that they can be synchronized in the editing process.

This time, I made a click track using a combination of MuseScore and Adobe Audition (Audacity -- which is free -- would work, too). I added a percussion part to the Road To Lisdoonvarna sheet music file in MuseScore, exported it to a WAV file, then opened that in Audition and exported it to an MP3 file. Unfortunately, MuseScore doesn't export to MP3 directly.

Then, I put the MP3 on my tablet so that I could listen to it through my bluetooth headphones while playing/recording.

It doesn't have to be that complicated, though. If you had a recording that you liked, you could play along with that (in-ear) or even use a metronome app at the desired tempo.

I use Adobe Premiere CS6 for video editing, which allows me to mix multiple audio and video tracks. I understand that Pierre mixes the audio separately in an audio editing program. Premiere has pretty good audio mixing capabilities. I was able to adjust volume levels of each instrument at key points, fade in and out, and applied noise reduction to improve the sound quality.

If you have video software that doesn't handle multiple video and audio tracks, you could achieve a similar effect by using a program like Audacity to mix the sound, import it into your video software and tweak the timing to get it to synchronize.

That's probably more info than you wanted, but, as you can tell, I'm a bit of a geek and love to discuss this stuff.