A1. Doublespeak A2. Tunnels B1. Tunnels (Bicep Remix) B2. Believe Sisterhood release their second EP for Tief Music following their hugely successful 'Call Me Ishmael' 12" in 2013. Tunnels features three original tracks showcasing the London based duo's versatility and maturity as producers with Bicep reconstructing the title track, morphing it into a punchy, bassline focused roller with piercing atmospheric pads!