Music occupies more of our life space than we realize. Webster says, that music is an art of sound and time that expresses ideas and emotions in significant forms through the elements of rhythm, melody, harmony and dynamics. The Pythagoreans thought that the movements of heavenly bodies created an ethereal music, commonly called the music of the spheres.The sounds from the universe certainly don't sound like the music we are used to, but that does not stop it from being a form of music. It has particular rhythms, vibrations, and dynamics. The music of the more primative tribes of this planet sometimes sounded more like noise than music, but don't tell them that if you want to keep your head. On a more grassroots level, have you ever thought about the sound of a fan? Does it not possess a rhythm of its own? Like written music, can it not lull you to sleep at night with its whirl, like soft music? Is not the even breathing of a sleeping child 'music' to a Mother's ear? I suppose music is too subjective to leave entirely to a Websteronian definition. While obtaining my Master's degree, I took a curriculum class and learned something really neat about music. One of the students, whose name I can not remember, gave us a presentation on Superlearning. He advised us that in the period of history folowing the Renaissance, roughly from 1600-1750 CE., the composers of that time created a form of music called Baroque. What was interesting, according to him, was that this type of music was found to increase a person's capacity for learning by 25%, if it was listened to while studying. Personally, I would try almost anything to retain all that stuff I was asked to absorb. I tried it and whether it was suggestion or truth, I felt that it helped my learning. School work seemed to come easier especially when I had to write papers, so I constantly listened to the tape. I have gathered a list of selections and present it here for those who wish to test it for themselves.
Some slow Baroque Music:

Antonio Vivaldi:
Largo from "Winter" from THE FOUR SEASONS
Largo from Concerto in D Major for Guitar and Strings
Largo from Concerto in C Major for Mandolin, Strings and Harpsichord

Telemann:
Largo from Double Fantasia in G Major for Harpsichord

Johann Sebastian Bach:
Largo from Harpsichord Concerto in F Minor BWV 1056
Air for the G String
Largo from Harpsichord Concerto in C Major BWV 975

Arcangelo Corelli:
Concerti grossi, Op. 6/4 in D Major
Largo from Concerto No.10 in F Major from Twelve Concerti Grossi, Op. 5

Tommaso Albinoni:
Concerto in B Major
Adagio in G for Strings

Caudioso:
Largo from Concerto for Mandolin and Strings

Pachelbel:
Canon in D

Domenico Scarlatti:
Sonate f-Moll L118

Pietro Locatelli:
Concerto Grosso, Op. 1/2 c-Moll


Some 60-beat Selections by Contemporary Composers:

Janalea Hoffman:
Mind Body Tempo Piano and orchestra
Deep Daydreams Instrumental music. Side 1 is at 60 beats: side 2
is at 50
Music for Mellow Minds Piano and strings
Music to Facilitate Imagery Piano and strings
Children's Meditation Tape Features "The Dolphin Song" relaxation
games and guided imagery for ages two to eleven
Rhythmic Medicine Video of 60-beat and 50-beat instrumental
music synchronized with visual images
William Duncan:
Exultate-Music to Expand Learning
60-beat guitar music

Andre Gagnon:
Lullaby for My Mother From his
album The St. Lawrence(Columbia Records)


Yahoo has an incredible amount of resources on the Baroque style.
Two other interesting sites I found there are Arton's Page and The Baroque Society.