Inquiry question:

First off:

• Sound is not mass, it is an energy.
• The reason has to do with resonance.
• If the frequency is high enough, it can shatter glass.
• The glass vibrates at the same freq. on the outer surface of the glass. 
• If however it is a lower frequency, the inside of the glass vibrates.

What does this mean?

• The frequencies cause interference in the waveforms going through the glass
• Therefore stressing the glass causing it to shatter.

How do you make this happen?

• for the glass to break, it depends on the resonance frequency.
• to figure that out, you must determine mainly the glass' quality itself,
• the thickness of the glass, the shape and the temperature.
• once you have figured out the resonance frequency of the glass, play the
• sound with the resonance frequency and the glass will shatter.

why does this happen?

• every glass has a certain resonance frequency, and if you match the sound
• with the same frequency, you will shatter the glass.
• if you tap a wine glass near your ear, you will hear it sing the frequency.
• if you can stimulate a sound with that frequency, you will be able to 
• shatter the glass.

Sources:

• https://ca.answers.yahoo.com/question/index?qid=20070406151326AAfBFz8
• http://www.breakglass.org/How-does-sound-break-glass.html
• http://www.acoustics.salford.ac.uk/acoustics_info/glass/