The efficacy of instrument tuning using one's ear, particularly with reference to the oboe, versus digitally utilizing a free mobile app like the Soundcorset app, can be debated. However, for achieving greater tuning accuracy in a much quicker manner, especially for orchestras such as the Dublin Symphony Orchestra, the app clearly stands out. The Soundcorset app allows you to set the reference frequency to 442 Hertz, a standard used by many leading orchestras. Additionally, another great app is Total Energy, available for about 7 euros!