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Possibly the last album Copeland will release, You Are My Sunshine is marked with the trademark sound that afforded the Orlando quartet a 10-year run as the sensitive princes of the modern day emo and pop-punk worlds. Frontman Aaron Marshโ€™s airy falsetto voicing sentimental verses works against a backdrop of dreamy keyboards and a lush rhythm section, as it long has.

The 2008 disc continues with the expansion of the bandโ€™s sonic palette that started on 2006โ€™s Eat, Sleep, Repeat, too. The gentle waltz of โ€œThe Day I Lost My Voice (The Suitcase Song),โ€ for instance, is punctuated with digitally programmed beats and soft horn flourishes while pitting Marshโ€™s vocoder-treated vocal against a bridge from guest Rae Cassidy Klagstad. Lyrically, Marshin his typically romantic fashionconsiders the internal strife that leads to his tendency to flee from hairy situations.

A week before heading out on the last tour of Copelandโ€™s career, Aaron Marsh filled us in on the mysterious origin of the songโ€™s title, his feelings towards vocal processing and his chance discovery of Klagstad.

INDEPENDENT WEEKLY: Iโ€™ve heard that the songโ€™s title comes from the fact that you wrote the music on a day when you thought you had actually lost your voice. True?

AARON MARSH: Yeah. I was having problems with my voice and started to fear the worst. I couldnโ€™t talk or sing at all. I wrote the music on the day I made an appointment with a specialist. I wrote the melody and lyrics later, but the instrumental was done that day.

โ€œThe Day I Lost My Voiceโ€ uses Autotune fairly prominently. How do you feel about the typically negative connotation thatโ€™s been given to Autotune since its use has become more widespread?

Itโ€™s actually a vocoder, not Autotune, but Iโ€™ll answer the question anyway. I love great songs. Autotune canโ€™t make the song itself any better or worse. It can change a performance, but not the song itself. Itโ€™s just an effect and to write off a song based on one effect is silly to me. If the song is great, you can load it up with autotune, and it will still be a good song. If the song sucks, no amount of autotune is going to make it better. So the effect isnโ€™t a game changer for me. But I guess if the sound of the effect is irritating to people I can understand that. It just doesnโ€™t really grate on my nerves.

Speaking of vocals, this track is one of three songs featuring guest vocalist Rae Cassidy Klagstad after Anna Becker played that role on Eat, Sleep, Repeat. How do you guys find these relatively unknown singer/songwriters with such amazing voices, and what led to Rae recording on the album?

Anna was living in Orlando and doing music with Gasoline Heart as her backing band and was kinda generating a big buzz around central Florida. We became friends and started collaborating. I had her sing on the Anchor & Braille record [Marshโ€™s side project with Anberlin vocalist Stephen Christian] as well as Eat, Sleep, Repeat. I really love her voice and her songs. She recently had a baby, so she isnโ€™t doing a lot of music lately. Iโ€™m hoping sheโ€™ll get back into it soon. Sheโ€™s great.

I found Rae Cassidy on MySpace. I stumbled across her page and thought that her music was pretty brilliant. She was only 14 when I heard her music for the first time. I kept tabs on her for a few years and when it came time to do You Are My Sunshine, I thought sheโ€™d be perfect for it. I figured our fans would really dig what she was doing.

My thought for guest vocals on Copeland records is that weโ€™d use up-and-coming artists rather than getting high-profile guests, not that there is anything wrong with high-profile guests. I really just liked the idea of introducing a smaller artist to our fans.

Sonically, โ€œThe Day I Lost My Voiceโ€ shares a few similarities with โ€œLove Affairโ€ from Eat, Sleep, Repeat. Are the waltz structure and the horn section both elements that youโ€™ve become more familiar with as the band has progressed?

We definitely found our sound on Eat, Sleep, Repeat. Expanding our instrumentation was a big part of that. Iโ€™m not sure about the waltz feel. I think I have always felt natural writing in that meter, but I try to use it sparingly because it sounds so stylized.

Whatโ€™s the significance of the storm in the third verse and the bridge of the song?

The storm just represented inner turmoil, and Raeโ€™s voice was meant to feel like a moment of clarity.

Am I wrong in assuming the โ€œlife in a suitcaseโ€ is a reference to touring? Was that any foreshadowing to the end of Copeland?

Not a foreshadowing at all. It was more looking back at the way Iโ€™d handled my problems in the past.

Whatโ€™s in store for you (and the rest of the band) after the farewell tour?

Iโ€™ll be producing records primarily, and Iโ€™m starting a new band for fun. All of us would like to be involved in music somehow. I donโ€™t think weโ€™ve all figured it out yet.

Copeland kicks off its farewell tour Wednesday, March 3, at Catโ€™s Cradle. Openers I Can Make A Mess Like Nobodyโ€™s Business, Person L and Deas Vail start at 7 p.m. Tickets are $14-16.

Bio: Spencer Griffith lives in Raleigh, where he teaches school and writes about bands.