HMH means Heineken Music Hall
The HMH is a concert hall in Amsterdam where pop concerts are given every week since 2001, and can be found close to the Amsterdam Arena. It is with more than 5000 persons the largest popzaal of the Netherlands (there is also a smaller hall for approximately 700 persons). It's already in the name, so it won't surprise anyone: The Hall is sponsored by the Heineken beer brand. The HMH is also increasingly used for corporate events (annual meeting, Party, etc.). More information on the website of the Heineken Music Hall.
HMH can also mean Hollywood Music Hall
The Hollywood Music Hall is a entertainment centre in Rotterdam. It is the largest disco and has seven halls, spread over three floors. Read more on the website of the Hollywood Music Hall.