As indicated above, "Statutory guidance" means it's binding and has to be followed - this is stronger than guidance circulars to local authorities on new legislation, which they can interpret at their discretion.   

The Government's side in the 24 Feb Report stage.

When the working group that we have convened has finished its work, the relevant sections of the guidance will draw clear distinctions about what might and might not be appropriate conditions for unamplified music.

It will be flexible enough to cope with special situations such as the use of drum kits or other loud and penetrating unamplified instruments in a way that the Bill never could without increasing its length and complexity.

While I am on that subject, it is not our intention to turn the guidance into regulations. We are proposing that the first issue of the guidance should be subject to the affirmative resolution procedure, but it will still be guidance.

Authorities will have to have regard to it rather than being obliged to follow its every dot and comma. In maintaining the flexibility of guidance, we can tailor the system in the light of experience, subject to the safeguard that I have just referred to, which is a response to the recommendation of the Select Committee on Delegated Powers and Regulatory Reform