Dear Aunt TUAW: Help me sync the music without the video

There are a lot of ways to do this. iTunes, QuickTime, HandBrake, and Fission come readily to mind. GarageBand and iMovie probably do too.

I forgot to mention that I want to add my lyrics in there too.

I want the option to have base clef but I don't want it visible by default.

I'm looking for an iPad application where I can create my own sheet music. The ones I'm finding give me way too much or too little.

I want to start out with just the treble clef where I can then tap on the clef and it will "drop a note" on it and then let me move it if it isn't in the correct place. Hopefully it will let me zoom in and out so I can be more accurate.

I would also like to be able to easily guitar/piano chord notations (with guitar chord diagram) above the treble clef with it being easy to move the chord to the proper place.

I would like to be able to transpose all chords at once from one key to another with all chords in the song changing to the new key.

I would also like to be able to tap on a "button" and switch between notes and tablature for my friends that can't read sheet music notes. I would like to be able to have multiple tablature "pages" as guitars can have many different tunings and be able to set each page to a specific tuning which the music will convert to so that it is correct for that guitar tuning.

I want to be able to print and email either or both and preferable be able to share over wifi/bluetooth to my friends who also have iPads.

I expect to have to pay $50 USD for something like this. If someone knows of an iPad app VERY much like this that would be great. It just might be in a different category than I've been able to find.

Sorry for the long comment, but I've spent a lot of time figuring audio extraction out, so I figure I'll pass on some tips. Really, there are a number of solutions depending on the source and the desired purity of the audio.

The easiest is indeed to use iTunes as RenMerc mentioned (the downside is that you're relying on the iTunes mp3 or aac encoder, which are not known for their excellence - though most people won't be able to hear the difference).

If the file is a format that iTunes doesn't understand, Erica's advice is great (if I remember correctly, MPEG Streamclip allows for your choice of encoders to be used, but you're still converting the audio to a new format so purity is lost).

If you're looking for purity, or are still having trouble because the video format is unsupported, you could look into mkv muxers/splitters; ones I use regularly for different functions include MKVToolNix, MKVTools, and Subler. The benefit here being that the audio is only 'extracted/repackaged' and is not converted, this is the purest method because you can't do better than your source, but depends on the source having the appropriate audio codec (basically if it's not in mp3 or aac 2.0, you're going to have to convert the file anyway - use MediaInfo Mac to see the stream's format, bitrate, etc.).

And finally, if you're really desperate to extract the audio, but the source format is not compatible with any of the above, or if you don't have direct access to the source file, you can use a combination of Soundflower and Audacity. Soundflower allows Audacity to capture all sound played by your machine, while Audacity will let you record the stream (due to the nature of this method, recordings must be done in real time - you have a 30 minutes clip to record, it'll take exactly 30 minutes, this will also produce arguably the worst audio quality, though it's certainly good enough for most people).

FYI - if my memory serves me, all software tools mentioned are free.

If I am not mistaken, isn't Quicktime able to do this? Open the file in Quicktime and view movie properties. Then, click the extract audio option and viola!, save it as an audio file and import into iTunes.

iTunes itself can also do something just like this. Just hit the Advanced menu in iTunes and hold down the Option key. You'll see 'Create MP3 Version' turn into 'Convert to MP3...' Hit that, and just tell it where your video is. iTunes will then make an MP3 (or AAC if that's what you use) version of the video. No video, just audio in whatever import settings iTunes is set for.