Question: How many professional orchestras does Spain contain?
About the article "Spain", section "Music and dance".

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Yampolsky has conducted more than 80 professional and student orchestras throughout the world, including repeat engagements with orchestras in the United States, Canada, Spain, Portugal, Australia, New Zealand, South Africa, South Korea, Taiwan, the Czech Republic and Chile. 
As a professional pianist, she has taken part as a soloist in many music festivals, such as:  Munich Piano Festivals, Germany  Munich Chamber music festivals, Germany  Tegernsee Music Festivals, Germany  Chopin Festival in Valldemossa, Mallorca, Spain  Corpus a Palma, Mallorca, Spain  Palau de Altea, Altea, Spain Invited by conductors as Philippe Bender, Muhai Tang or Yongji Wang, she has played in concertos and tours with several orchestras, such as:  Xiamen Philharmonic, China  Shanghai Philharmonic, China  Baleares Island Symphony Orchestra, Spain and performed together with other instruments and several Orchestras in Germany, Spain, France, Italy, Switzerland and China.
She also organizes her own concerts regularly, the last one of them at the He Luting Concert Hall, Shanghai, which was broadcast live on radio. 
This is a list of youth orchestras in the United States.
Youth orchestras are performing groups for student musicians.
The age range of participants varies; they may include musicians up to grade 12 or they may include older university and conservatory students.
In the United States, youth orchestras are operated primarily for music education.
Some are associated with professional symphony orchestras.
Professional symphony orchestras have multiple motivations for sponsoring youth orchestras, including training of young musicians and building future audiences by engaging children with classical music.
A 2006-7 survey of youth orchestras by the League of American Orchestras found that 75% of the participating orchestral groups were independent, about 19% were affiliated with adult orchestras, and about 3% were associated with educational institutions.
The first and oldest U.S. youth orchestra is the Portland Youth Philharmonic, founded in 1924 as the Portland Junior Symphony Association.
Russian émigré Jacques Gershkovitch was the Portland group's first conductor.
It was followed in 1935 by the Young People’s Symphony Orchestra in Berkeley, California, which describes itself as the second oldest independent youth symphony in the country, by the Dayton Philharmonic Youth Orchestra in 1937, and by other local groups such as the Kalamazoo Junior Symphony, established in 1939.
By 1963, "Life" magazine counted about 15,000 youth orchestras in the country and noted that they were producing music of a caliber that could appeal to adult audiences.
Unlike many countries, post-World War II the United States does not have a national youth orchestra.
A national youth orchestra existed, from 1940 to 1942, established and led by Leopold Stokowski and consisting of instrumental musicians between the ages of 18 and 25.
Stokowski personally auditioned many of the 15,000 young musicians who applied to become members of the All-American Youth Orchestra.
The orchestra he assembled consisted of about 100 musicians, one-fifth of whom were women.
A small number of professional musicians from the Philadelphia Orchestra played with the younger musicians.
The All-American Youth Orchestra made several recordings and toured in Latin America as well as the United States during its two years of existence before being disbanded due to the exigencies imposed by U.S. involvement in World War II.
In 2012 the Weill Music Institute of Carnegie Hall launched the National Youth Orchestra of the United States of America (NYO-USA).
By March 2013, the names of the 120 musicians chosen by were announced and the orchestra toured Washington, Moscow, St Petersburg and London in July 2013.
Adult symphony orchestras in the United States are in a separate list of symphony orchestras in the United States. 
Since appearing on the professional stage, he has performed all over the world in solo recitals and chamber music, and in particular as solo artist with many of the world's leading symphony orchestras.
These have included every professional symphony orchestra in the UK and Ireland, including annual performances at the Proms for seventeen years.
Abroad he has played as soloist with the following major orchestras, amongst many others, sometimes many times across several years. 
The Denver Young Artists Orchestra Association (DYAO) is one of the leading youth orchestras in the United States today.
It was founded in 1977 by Betty Naster and Carl Topilow in Denver, Colorado.
The orchestra maintains a close relationship with the Colorado Symphony Orchestra.
Membership is by audition and is limited to musicians aged 8 to 23.
Concerts take place in several concert halls in the greater Denver Metro Area including Boettcher Concert Hall, Gates Hall at the University of Denver's Newman Center for the Performing Arts, and Macky Auditorium in Boulder.
DYAO's current music director is Wes Kenney.
The Denver Young Artists Orchestra includes five ensembles: the original orchestra, known simply as DYAO, and four training ensembles: two Conservatory Orchestras and two String Ensembles.
Auditions take place every spring.DYAO has performed with many prominent soloists over the years, including Wendy Warner, Antonio Pompa-Baldi and Edgar Meyer.
In addition, DYAO has toured internationally several times, to various regions around the world, including Europe and South America.
In the summer of 2014, DYAO will go on a tour to Italy, France, and Spain.
Many alumni of the DYAO go on to play as professional musicians in well-known orchestras.