Most pieces have that one terrifying spot. Can you think of the most difficult spot in a piece you're working on? For me, the third measure of the Firebird excerpt comes to mind. Whenever I go back to practicing that excerpt, I spend a lot of time on that spot. There are many other examples of moments such as this that come up again and again.
If having an entire piece on your stand makes it tempting to jump around too quickly, take just a few of the difficult bars and add them onto one sheet.
All the hardest spots on one sheet.
Cut and paste or transcribe the most difficult bars from any number of pieces onto one sheet, and get creative during your warm-up! Approaching only the smallest and most difficult chunk each day will slow down the process of learning and refining them in a way that can turn them into second nature when they appear in context. Consider putting difficult excerpts transposed higher and lower on there, as well. (I'm looking at you, Classical Symphony!) Utilize a variety of extended techniques, altered rhythms, varied dynamics, tempi, and articulations... and so on!
Here's an example:
Important Tip: Make sure to include the key signature!
Your warm-up sheet can change every week or month, or you may choose to create one using your audition or recital repertoire. Since orchestral excerpts never go away and it's impossible to practice all of them each day, a warm-up sheet (or maybe two or three to rotate between) containing the most difficult spots is a great way to keep those pesky runs or intervals under your fingers!
What's on your custom warm-up sheet? Use #practiceroomrevelations and tag @joleneflute to share!