What is the sounding range of the tuba?

The sounding range of the tuba typically spans from about G1 to C4, but it's important to consider the context of the lowest and highest notes that a tuba can effectively produce. The choice that encompasses this range, G0 to C5, is the most accurate representation of the tuba's fundamental pitch possibilities in terms of its written music and performance practice.

Tubas are known for their deep, rich tones in the lower register, but they also have a capable high range that can extend beyond the middle C (C4) to C5 and even higher in some instances. This range provides versatility across musical styles, from orchestral to solo performances.

In contrast, other options provided do not align with the standard performance range of the tuba. For example, E3-C7 is more representative of instruments like the flute or piccolo, while Bb1-Bb4 and F#2-C6 might pertain more to different low brass instruments or specific techniques that are not as widely used in the standard tuba repertoire. Thus, G0-C5 is the most suitable answer for the typical sounding range of the tuba.