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More Support. Awesome Feedback. Professional Lessons.

I Don’t Know Guitar Lesson – Ozzy Osbourne

Today's "famous riff" comes to you from Ozzy Osbourne and the late great Randy Rhoads with the main riff to "I Don't Know".

Using a series of ascending doublestops (in this case they are simply inverted power chords) along with a driving sixteenth note palm muted rhythm, the main riff to "I Don't Know" has become one of Randy Rhoads' most popular riffs.

Probably the most difficult part of this I Don't Know guitar lesson will be keeping those sixteenth notes nice and even.

The fact that we have to slightly palm mute those open string sixteenth notes means that those notes will seem to pop out more. Because of that, any inconsistencies in the rhythm will be more easily exposed.

The key to getting those sixteenth notes even is to try and keep your picking hand wrist nice a relaxed. Any tension will make it more difficult to keep the notes even. Also, be sure to start with a slower tempo and gradually increase the tempo as you stay relaxed.

The only other part of the main riff to "I Don't Know" you really have to worry about would be the tricky little legato guitar fill at the end.

Pretty quickly though you will notice that this guitar fill is just one legato pattern taken across strings. Visualizing it in this way may help you get it under your fingers more quickly.

If this main riff isn't enough for you and you want to learn the entire song just make sure that this video gets at least 600 YouTube "likes" and I will teach the entire song note-for-note.

Simply click the link below to go to this video's YouTube page. After that page opens up all you have to do is click the "like" button underneath the video to let me know you want to learn the whole song. 🙂

I Don't Know guitar lesson YouTube page <-- Click here and then click the "like" button under the video!

OK have fun with this killer guitar riff from the great Randy Rhoads! I hope to see you guys back here soon teaching the complete song. 🙂


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I Don't Know Guitar Lesson


  1. Ronald J Cutaia Jr on July 14, 2014 at 11:57 am

    Hey there,

    It might be just me but I think your link to the youtube page has the wrong link. It takes me to an “edit annotations” page. Thanks for these by the way your generosity does not go unnoticed.

  2. Anonymous on July 15, 2014 at 8:43 am

    Awesome !! am I the only one who can’t seem to get this tone right though ?? how about a lesson on this tone also ?

    • Carl Brown on July 15, 2014 at 9:24 am

      Yeah I am working on some tone lessons for the next couple of weeks.

      I try to aim for a tone in my tone lessons that a lot of people recognize but for this particular lesson I just tried to dial in a decent hard rock tone but didn’t really try to match Randy’s specific tone.

      I will definitely being doing some tone lessons on him though. 🙂


  3. Raul on July 16, 2014 at 8:51 am

    Jamming song-awesome teacher

  4. frank paparo on April 2, 2017 at 1:06 pm

    Carl u have almost 600 likes, let’s wrap his baby up!! 🙂

  5. Conway Dellenbusch on August 8, 2017 at 9:25 am

    Hi Randy Conway here just wanted to know if you got the whole song yet for I don’t know.(Randy Rhoads) If you do just let me know where to find it. Thanks Randy.!!????

  6. Conway Dellenbusch on August 8, 2017 at 9:29 am

    Sorry Carl, I was meaning to call you Carl not Randy??.?????

  7. Conway Dellenbusch on October 12, 2017 at 11:24 pm

    Hi Carl. Do you know when you are going to put out the tutorial on I don’t know,(Randy Rhoads.?) Also where can I find it when it comes out.? Thanks Carl.

    Conway Dellenbusch.?????

  8. Vito Pontarelli on August 1, 2018 at 8:24 am


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