Dream Theater – Under A Glass Moon

Under A Glass Moon drum sheet music – a note-for-note accurate transcription of Mike Portnoy's drum part on Dream Theater's “Under A Glass Moon”, from the album Images And Words (1992). Every bar is written out in a clean, print-ready PDF.

About Under A Glass Moon drum sheet music

“Under A Glass Moon” is from Images And Words, Dream Theater’s 1992 breakthrough album, and features one of John Petrucci’s most famous guitar solos.

Mike Portnoy’s part is technical, with complex fills and changing sections at around 150 bpm. A serious challenge for advanced drummers.

A drum transcription taken from the original recording

This Under A Glass Moon drum transcription was written bar by bar from Dream Theater's studio recording and checked against the track. It is not a live take and nothing is simplified – these are the Under A Glass Moon drum notes exactly as they were played on the record.

The notation is clean and professionally engraved, with clearly marked sections and repeats, so it is quick to find your place when you jump to a fill or a chorus. Print it for your music stand or keep it on a tablet – both work well.

Song facts

• Artist: Dream Theater
• Album: Images And Words (1992)
• Drummer: Mike Portnoy
• Tempo: ♩ ≈ 150
• Style: progressive metal

What you get

When you buy Under A Glass Moon drum sheet music, you get:

• The full song, transcribed note-for-note from the original recording
• Clearly labelled song sections
• Professionally engraved, print-ready PDF
• Instant download after purchase

How to practise Under A Glass Moon on drums

A step-by-step way to learn Under A Glass Moon on drums with the sheet music:

1. Listen many times. Learn the structure.
2. Practise in sections. Master each part slowly.
3. Learn the fills exactly. Portnoy’s fills are composed.
4. Count the changes. Mark them on the page.
5. Build up to ♩ ≈ 150. Step by step.
6. Play with the record. Then record yourself.

Why note-for-note sheet music?

Most free Under A Glass Moon drum tabs are rough sketches – the main groove, maybe a fill or two, and rhythms that are hard to read. Note-for-note sheet music shows exactly what was played and when, so you learn the real part instead of an approximation, and you learn it faster.

Who is this sheet music for?

Under A Glass Moon drum sheet music is for advanced drummers and Dream Theater fans.

About Mike Portnoy

Mike Portnoy co-founded Dream Theater and is one of the most influential progressive drummers.

More Dream Theater drum sheet music

Want more than one song? The Dream Theater Ultimate Drum Collection includes Under A Glass Moon together with other songs, at a lower price than buying them one by one. You can also get other Dream Theater songs one by one: The Dance Of Eternity, The Ytse Jam, Pull Me Under and Overture 1928. See them all on the Dream Theater drum sheet music page.

Frequently asked questions

Does the sheet music cover the whole of Under A Glass Moon?

Yes – every section from the first bar to the last, exactly as played on the original recording. It is not a shortened or simplified version.

Is it written as drum tabs or as drum notation?

As standard drum notation on a five-line staff. Tabs can show which drum to hit but not the exact rhythm – notation shows both.

How do I get the PDF after I buy?

The download link appears straight after checkout and is also sent to your email. You can print the PDF or read it on a tablet.

Is Under A Glass Moon hard on drums?

Yes – it is an advanced progressive-metal song.

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