time2tempo manpage

COMMAND

time2tempo -- Convert a **time spine into a **tempo spine.

time2tempo [-rf][-a|-p] [input] [> output]

-a		Append the **tempo spine to the input data.
-p		Prepend the **tempo spine to the input data.
-r		Round tempo markings to nearest integer values.
-f		Fill null tokens with previous tempo marking.

The time2tempo command takes one or more **kern spines of a musical score and a **time spine which indicates the time at which each line in the score is to be played. The time2tempo command then calculates the tempo markings necessary to generate the performance at the given times.

**kern **time * *u=msec *M4/4 *M4/4 =1- =1- 2dd 0 4ee 2000 4dd 3000 =2 =2 2dd 4000 2dd 5500 =3 =3 2cc# 7000 4dd 9000 4dd 10000 =4 =4 4dd 11000 4cc 12000 4cc 13000 4b- 14000 =5 =5 2b- 15000 2a 18000 == == *- *-

**tempo * * =1- 60 . . =2 80 . =3 60 . . =4 . . . . =5 40 . == *-

The time values can be expressed in terms of milliseconds by using the flag *u=msec. Seconds are indicated by using the flag *u=sec as demonstrated in the following example.

**kern **time * *u=sec *M4/4 *M4/4 =1- =1- 2dd 0 4ee 2 4dd 3 =2 =2 2dd 4 2dd 5.5 =3 =3 2cc# 7 4dd 9 4dd 10 =4 =4 4dd 11 4cc 12 4cc 13 4b- 14 =5 =5 2b- 15 2a 18 == == *- *-

**tempo * * =1- 60 . . =2 80 . =3 60 . . =4 . . . . =5 40 . == *-

The -f option will fill in the tempo markings for all lines, whether or not there has been a tempo change in the performace.

**kern **time * *u=msec *M4/4 *M4/4 =1- =1- 2dd 0 4ee 2000 4dd 3000 =2 =2 2dd 4000 2dd 5500 =3 =3 2cc# 7000 4dd 9000 4dd 10000 =4 =4 4dd 11000 4cc 12000 4cc 13000 4b- 14000 =5 =5 2b- 15000 2a 18000 == == *- *-

**tempo * * =1- 60 60 60 =2 80 80 =3 60 60 60 =4 60 60 60 60 =5 40 40 == *-

The -r option can be used to round the tempo values to the nearset whole number if readability is more important than accuracy. In the following example the middle column displays the default output of the time2tempo command, while the last column displays the same data rounded to the nearest whole number.

**kern **time * *u=msec *M4/4 *M4/4 =1- =1- 2dd 0 4ee 1990 4dd 3208 =2 =2 2dd 4506 2dd 5500 =3 =3 2cc# 7603 4dd 8954 4dd 1040 =4 =4 4dd 11104 4cc 12360 4cc 12741 4b- 14112 =5 =5 2b- 14885 2a 18901 == == *- *-

**tempo * * =1- 60.3015 49.2611 46.225 =2 120.724 57.0613 =3 88.8231 . 5.96184 =4 47.7707 157.48 43.7637 77.6197 =5 29.8805 . == *-

**tempo * * =1- 60 49 46 =2 121 57 =3 89 . 6 =4 48 157 44 78 =5 30 . == *-

Example usages of the time2tempo program are avaliable on the time2tempo examples page.

The compiled time2tempo program can be downloaded for the following platforms:
• Linux (i386 processors) compiled on 3 Jun 2006.
• Windows compiled on 1 Jun 2006.

The source code for the program was last modified on 3 Jun 2006.