diff --git a/samples/0coast/2-short.wav b/samples/0coast/2-short-B.wav
similarity index 100%
rename from samples/0coast/2-short.wav
rename to samples/0coast/2-short-B.wav
diff --git a/samples/0coast/3-short.wav b/samples/0coast/3-short-B.wav
similarity index 100%
rename from samples/0coast/3-short.wav
rename to samples/0coast/3-short-B.wav
diff --git a/samples/0coast/4.wav b/samples/0coast/4-B.wav
similarity index 100%
rename from samples/0coast/4.wav
rename to samples/0coast/4-B.wav