There is no such thing as a 5/4 note in "tadpole" notation, so you have to change B5/4 to a tied 1/4 note and a 1/16 (B-B/4). Player programs don't have problem with strange fractions (15/8) but many notation programs do.

Unfortunately MidiText produces these fractions (and puts the tie the wrong side of a barline) - try this, I've "translated" it from machine ABC to manual. X:1
T:A STOR MO CHROI
M:4/4
Q:1/4=100
L:1/8
K:Eb
c2c>c e3f/g/|f>ec>A B3c/d/|ec2c BG-G3/4B/4-B|c2c2-c3c|
c2c2 e3f/g/|f>ec>G B3c/d/|ec2c BG2B|c2c4cc|
c2cc e2fg|b2c'2 c3c|c2Bc ef2g|c'4 b3c'/b/-|
b/4a3a3/4 g3f/g/|f>ec3/4G/4-G B3c/d/|ec2c BG2B|c2 c6||