Are these MIDI circuits equivalent?
Suppose points A through G in circuit A are connected to ground. Then there's a current 5 V / 220 Ohm = 23 mA through every resistor for a total of 7 * 23 mA = 159 mA. In circuit B there's only one 23 mA current. They're not equivalent.
Also, in circuit A the resistance between any two of the inputs is 440 Ohm, in circuit B this is 0 Ohm.