In an interview with So What, Metallica guitarist Kirk Hammett talked about the recent improvement of his guitar playing and revealed how James Hetfield‘s time in rehab led him to write more music.

As you may remember, Metallica’s legendary frontman James Hetfield has been struggling with substance abuse throughout the years. Earlier in 2003, during the recording of Metallica’s eighth studio album, ‘St. Anger,’ James entered rehabilitation for his alcohol problems. Although he seemed to be doing okay for a while, last year, Hetfield’s alcohol issues emerged once again and Metallica had to cancel their tour of Australia so he could go rehab.

Recently, the iconic Metallica guitarist Kirk Hammett joined a conversation with So What and talked about how his music improved within the last couple of years and stated:

“Well, I think my playing is improved, it’s continuing to improve over the last three years, it’s on an upward trajectory. Then, you know, when everything stopped, I didn’t let COVID stop me whatsoever.”

Furthermore, Kirk revealed the reason why he had written so much music. Apparently, when James Hetfield went back to rehab, Hammett focused on writing new music and he ended up creating a lot of them. Kirk also stated that he and his bandmate Rob Trujillo worked together and wrote more music during the absence of the band’s lead vocalist.

Here’s what Kirk Hammett stated:

“I kept on working every single fucking day. I wrote tons of music. That’s why I have so much fucking music, you know? It’s like a year ago when James said he had to get back to rehab, I just buckled down and I wrote so much fucking music.

I got together with Rob Trujillo and wrote more music. And then I got together with Edwin Outwater, the conductor for ‘S&M2,’ and I wrote two horror-themed instrumentals that were supposed to be played with the Vancouver Symphony next month.”

Click here to read the entire interview with Kirk Hammett.