Mixing & Mastering Engineers, Producers & Songwriters who worked with Unless

Sine Sound offers quality mixdown and mastering services for clients, including producers and others wanting a professional finish to their product.

We cater for everything from artist development right up to the recording process, through to mixing and mastering. No job too big or too small. We service the record label 3nd Records exclusively and have done work for many major brands and other major labels. There is a great team of engineers, producers and a hefty selection of high end gear

Featured in Kygo's Monthly cIass. I offer the complete vocal package of lead vocals, stacked with Doubles and harmonies and Ad Libs to complete your project. I’m an internationally successful songwriter and run my own company for mixing/mastering. I can provide everything you need for your project without having to hire more than 1 pro. Let’s go!

Award-winning Japanese producer, composer, and guitarist with credits spanning major artists, international collaborations, and million-stream releases.

I create full, release-ready songs, production, lyrics, melody, and a demo vocal to guide your performance. You record vocals; I deliver the entire world.

Hey! I’m Sadie Cannon, a multi-genre vocalist + songwriter with over 10 years of professional experience moving between pop, EDM, R&B, rock, and modern country.

Professional singer-songwriter with over a decade of experience, I’ve opened shows for major artists and I'm currently crafting records with multi-platinum producers. I’ve recorded tracks for top-level performers and generated millions of streams for my clients. I can’t wait to create something amazing together!

I write high-impact rap reference verses and hooks that artists can build records from. I focus on verse-based performance references and hook ideas across different tempos, moods, and artist pockets. My writing is tested publicly through short refs that consistently generate strong engagement, which helps me quickly dial in what works.

Selene Ash creates quiet, cinematic folk songs shaped by faith, love, and stillness. Her music lives between night and morning — intimate, reverent, and unhurried. Ideal for wedding vows, memorials, devotional pieces, and emotionally grounded storytelling.