In Christ's Kingdom, older women (the married, the widows and those who are consecrated virgins) are commanded by the Apostle St. Paul to teach the younger women. The younger women (the unmarried, the youth and novices) are to receive said instruction and learn how to keep a home (where applicable) and how to devote themselves more fully to God.
I understand the good and suitable place that the arts, like orchestras, etc can occupy in the world, but there are some incontrovertible facts in play here:
1) A position in an orchestra is more often than not a PAID position, or, at the very least, a position that requires a great commitment of time and effort. Either way, a woman would have to be away from home a great deal of time, thus, by default, neglecting or putting off responsibilities that should have greater priority. It is not enough that a person attends to their duties whenever they feel they can; God gives us a hierarchy of duties and we are to fulfill those duties in their proper times.
2) As was quoted earlier, the instruction of youth is far more important than the aesthetic value of the playing of an orchestra. Teaching children is of vital importance because it was commanded by Scriptural injunction and because children need to have their prerogatives formed by obedient souls, not by upwardly-mobile go-getters who chase after the 'first chair' in some ensemble.
3) There is a DEARTH, a deadly and heartbreaking paucity, of people willing to serve THE CHURCH, IN THE CHURCH, FOR THE CHURCH'S SAKE. We have too many people running around talking about their 'apostolates' and their 'ministries', which, being divorced from an actual vocation to religious life, are nothing more than a Protestant idea. People go about saying that they have 'a ministry outside the church', or that 'their gift to God and to His people is to use their gifts in the world', which is generally a euphemism for 'I want a better-paying or more prestigious venue in which to use my talents'. Why on Earth are people who call themselves faithful Catholics not beating down the doors of their church rectory to BEG their pastor to let them serve the Body of Christ with their gifts WITHIN the context of Mass and at other important times?
Honestly... there are too many questions about what is permissible in the world and not nearly enough questions about how we can more ully devote ourselves to Our Lord. I am not trying to be a downer or seem as though I am against the arts, but these things MUST take a secondary place in comparison with the privilege of assisting our shepherds with their holy duties at Mass. Any chance we have to beautify anything should first be spent beautifying Our Lord's Houses and decorating His Altars with the love of our hearts and the gifts of our hands; after all, it is God, Our Father and the Giver of every good gift, who was pleased to bless some of us with these talents; they are His, and we should offer them to Him in thanksgiving.
St. Cecilia, pray for us.
Immaculate Heart of Mary, triumph soon.
Sacred Heart of Jesus, have mercy on us.