


Music
December 27, 2000
Edited: October 1, 2003
I
have been thinking for a long time about writing something about music.
Other than my wife and family I can't think of anything I love more
than music. I like all kinds but Classical
music is my favorite. If I have my choice I listen to it from my
first waking moment of the day to my last. Whenever I am at my computer
at home there is classical music in the background. Most times this
would be WQXR (New York) but on Sunday
mornings I especially love to listen to Baroque music from WSHU
(Fairfield, Connecticut). When travelling I listen to WCLV
(Cleveland, Ohio) using the player from RealNetworks.
I have to admit that I was so impressed with the ability of the Internet
recently when I was able to listen to WCLV
while I was more than 10,000 miles away in Australia!
(read
more)
Music has been part of my life for more than
50 years. Where do I start? How can I best share a perspective that
may be relevant to others? Perhaps an historic approach may be best.
I hope you find this interesting.....
Unlike Mozart, I can't say
that music was part of my very early life. My first memories are actually
from when I started clarinet
lessons in fifth grade. That would have been around 1955. Taking music
lessons was the thing to do in my neighborhood in Salem, New Jersey.
All of my closest friends started lessons about the same time. Lessons
led to junior high school band and then on to senior high school band.
I was fortunate to be selected to first chair clarinet for my junior
and senior years. My older brother was a trombone player and my younger
brother was a trumpet player (as was my father). That made for a nice
combo and we performed a Dixieland piece at a public concert. I also
performed in a regional state band and various local groups.
Hi-fidelity systems were beginning
to get pretty good around the early 1960's and my family had a good
record collection. They were mostly Broadway, Dixieland, and big band
albums. I liked all of them. A friend of mine, Bruce Smith, also had
a "Hi Fi" and his family had a lot of classical music albums.
I liked them a lot and this was the beginning of a great love of classical
music which has grown over the years.
Off to college and the Lehigh University
marching band and concert band. These were great experiences but the
truth is that when I got involved in the fraternity (Kappa
Sigma) I lost interest in the clarinet. The Beach
Boys and the Beatles became
the important music in my life. It wasn't until quite a few years later
that classical music reemerged as an important thing to me.
I'm not sure exactly when it was in my adult life that I began to have
a deeper appreciation of classical
music but it lead to building a collection of CDs. It is modest
in size compared to what many people have but the Mozart collection
is probably 100 CD's. For years I have been planning to build a database
of my CDs including the composer, orchestra, track titles, etc. and
in fact I made several attempts at it but never got too far. Much too
tedious. Then along came MP3 and CCDB!
So, what is digital music to start with. It starts with analog music.
When you go to Lincoln
Center to hear a string quartet you are listening to analog music.
If you want to listen to it later at home you need to have a way to
capture it, store it, and replay it. In the "old" days this
was done with vinyl records and later with acetate tape. Today it is
mostly done with CDs (compact discs). The analog music is captured with
recording equipment and then placed on the CD in CD-DA or digital audio
format. This is done by sampling the sound 44.1 thousand times per second
and capturing 16 bits (two bytes) of information about the characteristics
of that second. That results in 88.2K bytes of data for a second of
music. Multiply X2 for stereo and you have 176.4K bytes of data per
second. Multiply X60 and you get 10.584 megabytes per minute of music.
A CD holds about 660 megabytes of data so that gives you approximately
62 minutes of music on a CD. Sound about right so far?
OK, so what is MP3? There is a group of experts (including prominent
involvement of IBM) called the "moving
pictures experts group" which created a standard called MPEG.
MPEG has various "layers" which specify how audio or video
can be compressed. Compression removes bits from the sampling process
that are not essential or even recognized by the human ear. The result
is a much smaller amount of data. MPEG layer 3 describes a particular
standard for achieving high quality sound. It results in roughly eleven
times for music per megabyte of storage. In other words with MP3 you
can store roughly 11 hours of music on a CD. A good rule of thumb for
thinking about MP3 is 1 megabyte of storage per minute of music.
MP3 is changing how people think about digital music whether they are
consumers, artists, producers, broadcasters, or netcasters. Meanwhile
there is still a physical/analog aspect to music I don't see going away.
Did you know there is a site on the Web where you can commission the
creation of your own violin
or cello
Footnote 1: I first learned about mp3 in the 1990's from teenagers.
Surprised? Me either. Teenagers have a way of learning about new things
and spreading the word like wild fire. MP3 has great potential for new
business models. Imagine being able to click here to download and play
a single time, multiple times, just your favorite track, a copy you
could distribute to friends so they in turn get lots of choices for
how to purchase, etc. IBM has been quite involved for years perfecting
Data Hiding technology that can enable such new approaches.
Footnote 2: I also like to experiment with midi
music. Sometimes I listen to midi music on my ThinkPad while on
an airplane or in a car. I have licensed two modest collections of midi
music. One is the Peter
Vantine collection (36 titles) and the other is by PG
Music (20 titles). Here
is a link to 180 Mozart midi selections. You can also find some very
nice midi music at Gary's
Midi Jukebox.
Additional Reference
John Hedtke has an excellent book called "MP3
and the Digital Music Revolution"