how many bars does a song of 144 bpm and of 2:28 have

Answer 1

To find the number of bars in a song, we can follow these steps:

1. Convert the song length from minutes and seconds to seconds.

   • 2 minutes and 28 seconds is: \(2 \times 60 + 28 = 120 + 28 = 148\) seconds.

2. Calculate the number of beats.

   • At 144 beats per minute (BPM), the number of beats in 148 seconds is: \[ \text{Beats} = \left(\frac{144}{60}\right) \times 148 = 144 \times 2.4667 \approx 355.2 \text{ beats}. \]

3. Determine the number of bars.

   • Assuming the common time signature is 4/4, there are 4 beats per bar.
   • Thus, the number of bars is: \[ \text{Bars} = \frac{\text{Beats}}{4} = \frac{355.2}{4} \approx 88.8 \text{ bars}. \]

Since the number of bars must be a whole number, we round down to 88 bars. Therefore, a song at 144 BPM and 2:28 long has approximately 88 bars.