How I use lame to encode Music to mp3

lame -h -V 3 mymusic.wav

This uses variable bitrate mode with -h (high quality but slightly slower) and produces the following frame bitrate histogram:

LAME 3.100 64bits (http://lame.sf.net)
Using polyphase lowpass filter, transition band: 18000 Hz - 18581 Hz
Encoding mymusic.wav
      to mymusic.mp3
Encoding as 48 kHz j-stereo MPEG-1 Layer III VBR(q=3)
    Frame          |  CPU time/estim | REAL time/estim | play/CPU |    ETA 
 11459/11459 (100%)|    0:05/    0:05|    0:05/    0:05|   49.421x|    0:00 
 32 [  118] %*****
 40 [    0] 
 48 [    0] 
 56 [    0] 
 64 [    1] *
 80 [    0] 
 96 [   26] **
112 [  280] %************
128 [ 1412] %%%%%%%%%*******************************************************
160 [ 4372] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%***************************************************************************************************************************************************
192 [ 2319] %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*************************************************************
224 [  864] %%%%%%%%%%%%***************************
256 [ 1206] %%%%%%%%%%%%%%%%%**************************************
320 [  861] %%%%%%%%%%%%%%%%***********************
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
   kbps        LR    MS  %     long switch short %
  186.8       28.3  71.7        70.8  12.5  16.7
Writing LAME Tag...done
ReplayGain: -9.7dB