These concerts are super-popular, so I am putting it up now even though tickets do not seem to be on sale yet. You can go the 7-11 I-Bon and ask staff to help you find the concerts, or keep an eye online (this page is in Chinese, but you can spot the Do Re Mi once they put it up).
This year, there will be three shows: 2:20, 4:30, and 6:30pm. They are 40 minutes long. Tickets are NTD150 each. Music is from the Sound of Music:
Do Re Mi
I Have Confidence
The Lonely Goatherd
Climb Every Mountain
So Long Farewell
Concert name: Do Re Mi 音樂劇童唱會
Place: 國家音樂廳 (National Concert Hall, CKS Memorial)
Actually, August 10th is a date with many family concerts on the go. Here is another one that looks quite good:
The Taipei Philharmonic Orchestra 台北愛樂室內樂坊 第二十六期 古典親子音樂甜點—亞歷山大 蘇雅雷 2013來台音樂會
Alexandre SOUILLART 2013 Recital à Taipei (Family concert0
When: August 10th, 7:30pm
Cost: NTD300 per ticket, deal of NTD480 for one parent and one child
Where: 台北愛樂暨梅哲音樂文化館 (北市濟南路一段七號B1) Jinan Road Section 1, No. 7, B1, Taipei City.
Link to online ticketing site (you can download the English order form on the English page and fax/email it to the office).
They are also holding some workshops for children over summer (in Chinese): http://tspo.pixnet.net/blog/post/39217655http://tspo.pixnet.net/blog/post/39217655