Author Topic: Notating a tempo change  (Read 692 times)

0 Members and 1 Guest are viewing this topic.

Patrick O'Keefe

  • Sr. Member
  • ****
  • Posts: 360
  • Karma: 20
Notating a tempo change
« on: January 06, 2020, 04:41:57 PM »
I'm writing a piece that starts at quarter=60 and gradually speeds up over about 35 second to quarter=120.  But there is no accelerando.  Instead, I gradually replace quarter notes with 8th notes as the primary beat, and, at some point specify a metric modulation to get the primary bet back to quarter notes.  But where to put the metric modulation?  There is no one spot (to my ears) where the tempo changes, and putting a new metronome mark anywhere makes it look like thee is a tempo change at that point.

I've attached one audio file and 3 PDF files of possible placements of the metronome mark.  Does any one look better than the others?  Is there another solution I haven't thought of?  Or am I completely off base for not hearing the obvious tempo change?
« Last Edit: January 06, 2020, 04:43:48 PM by Patrick O'Keefe »

SallyS

  • Jr. Member
  • **
  • Posts: 54
  • Karma: 1
  • “Without music, life would be a mistake”
Re: Notating a tempo change
« Reply #1 on: March 25, 2020, 04:33:47 PM »
Doesn't look like anyone's replied to this.... And maybe you've sorted it already.... But Anyway... Just thought I'd add my opinion. Your pulse stays the same throughout so yes there's no accelerando. Why do you want a crotchet (quarter) to suddenly be twice the speed?.... Surely you just need to notate with increasingly shorter notes. It's very interesting by the way. I'll look forward to hearing more.

Patrick O'Keefe

  • Sr. Member
  • ****
  • Posts: 360
  • Karma: 20
Re: Notating a tempo change
« Reply #2 on: March 25, 2020, 07:19:25 PM »
Doesn't look like anyone's replied to this.... And maybe you've sorted it already....
Nobody replied here, but I had a number of off-forum discussions.  I picked a solution I would never have thought of involving different time signatures (2/4 and 2/2) in addition to metric modulation.  It's not ideal, but it was suggested to me that made the beat - the pulse - clearer. 

..Your pulse stays the same throughout so yes there's no accelerando.  Why do you want a crotchet (quarter) to suddenly be twice the speed?
Actually, the pulse is twice as fast at the end of the section as it was at the beginning.  I want the notation to indicate (or at least imply) that.
.... Surely you just need to notate with increasingly shorter notes.
I originally had that, but I really wanted to show that the tempo had doubled.

This transitional phrase is from the middle of the 2nd movement of my septet.  The septeet that has been discussed in other sections of this forum - bouncing back and forth between "In progress" and "Completed".

Mvmt I audio - https://app.box.com/s/jt3is056v29q1ces76yth3yh1hxcfmyz
Mvmt I score - https://app.box.com/s/b5djlx1tr5750ytxvzbhi38rbffxu6aj

Mvmt II audio - https://app.box.com/s/rr8p1h14lhqyf591l0nq2ikkjhmunfqf
Mvmt II score - https://app.box.com/s/qjraogkducx4bxue1ng4dtubavb4tavz

Mvmt III audio - https://app.box.com/s/sxyehizamwwxdm0qgewn3fbyaobuemv4
Mvmt III score - https://app.box.com/s/u0t5ohldz7yq00pdl3qdzfmqqfe1lolq