HSTuner provides reference tones to tune guitars and basses in a variety of tunings. Train your ear by tuning to a pitch rather than a meter. High-quality piano samples are like having a patient person with a perfectly tuned grand piano to help you tune your guitar or bass. It's best to stretch your strings and tune up from below the target pitch when tuning. Standard tuning as well as open tunings like G and C. Now in a universal app for all iOS devices with AirPlay support so you can stream to any AirPlay device -- tune your whole household at once, great for jam sessions.