Chord sequence complexity listening test

This is a test with the purpose of studying the complexity of different chord sequences. You will be asked to listen to some of those sequences, played by a piano, and evaluate their complexity. The test is open to everyone, regardless of their background and musical knowledge.

You can complete the experiment at a time that is convenient to you. If you need to take a break during the test, please leave the browser window open. Do not hit "Refresh" or "Back" on your browser while doing the test, otherwise you will restart from the beginning of the current or previous section. You may adjust the volume throughout the test and take as long as you like. The overall test should take less than 30 minutes.

Please, use good quality headphones or use good quality speakers in a quiet room.
Use either Firefox or Chrome for best results.

Terms and Conditions

You should only agree to take part in this research project only if you want to and it is entirely up to you.
If you choose not to take part there will not be any disadvantages for you and you will hear no more about it.
You are still free to withdraw at any time and without giving a reason.

This listening test was approved by the Queen Mary University of London ethics committee, with approval code QMREC1513.
If you have any questions or concerns about the manner in which the study was conducted please, in the first instance, contact the researcher responsible for the study at
If this is unsuccessful, or not appropriate, please contact the Secretary at the Queen Mary Ethics of Research Committee,


  • I, the participant, understand that if I decide at any other time during the research that I no longer wish to participate in this project, I can notify the researchers involved and be withdrawn from it immediately.
  • I consent to the processing of my personal information for the purposes of this research study. I understand that such information will be treated as strictly confidential and handled in accordance with the provisions of the Data Protection Act 1998.

I spend a lot of my free time doing music-related activities.

I sometimes choose music that can trigger shivers down my spine.

I enjoy writing about music, for example on blogs and forums.

If somebody starts singing a song I don't know, I can usually join in.

I am able to judge whether someone is a good singer or not.

I usually know when I'm hearing a song for the first time.

I can sing or play music from memory.

I'm intrigued by musical styles I'm not familiar with and want to find out more.

Pieces of music rarely evoke emotions for me.

I am able to hit the right notes when I sing along with a recording.

I find it difficult to spot mistakes in a performance of a song even if I know the tune.

I can compare and discuss differences between two performances or versions of the same piece of music.

I have trouble recognizing a familiar song when played in a different way or by a different performer.

I have never been complimented for my talents as a musical performer.

I often read or search the internet for things related to music.

I often pick certain music to motivate or excite me.

I am not able to sing in harmony when somebody is singing a familiar tune.

I can tell when people sing or play out of time with the beat.

I am able to identify what is special about a given musical piece.

I am able to talk about the emotions that a piece of music evokes for me.

I don't spend much of my disposable income on music.

I can tell when people sing or play out of tune.

When I sing, I have no idea whether I'm in tune or not.

Music is kind of an addiction for me - I couldn't live without it.

I don’t like singing in public because I’m afraid that I would sing wrong notes.

When I hear a music I can usually identify its genre.

I would not consider myself a musician.

I keep track of new of music that I come across (e.g. new artists or recordings).

After hearing a new song two or three times, I can usually sing it by myself.

I only need to hear a new tune once and I can sing it back hours later.

Music can evoke my memories of past people and places.

I engaged in regular, daily practice of a musical instrument (including voice) for ___ years.

At the peak of my interest, I practiced ___ hours per day on my primary instrument.

I have attended _ live music events as an audience member in the past twelve months.

I have had formal training in music theory for __ years

I have had __ years of formal training on a musical instrument (including voice) during my lifetime.

I can play ___ musical instruments.

I listen attentively to music for __ per day.

About harmony and chords:

I play a musical instrument (including voice).