PROBLEM SOLVED! No more music cutting. I made a mistake in my Previous post about the 5GHz WiFi.
Check your blue tooth speakers frequency and download an app called WiFi Analyzer Classic. Found my neighbour had the same router and default channel as me. I accessed the router which is dual-band and found that the 5 GHz WiFi was never enabled. In fact all of these routers supplied by Orange Are only enabled for 2.4GHz although they are dual band. On the 2.4 GHz I changed the channel from auto to channel 6. I then enabled 5 GHz WiFi Frequency and changed that from auto to channel 48. Saved changes, exit router. Switch router and echo dot off for 5 mins. Start router first then echo dot. Perfect streaming of music, I have had no disconnections. I assumed my blue tooth speakers were on The 2.4GHz but not true. I assumed my 5 GHz WiFi band was activated, not true, check your router and neighbours channels as well. Bear in mind if using 5GHz WiFi it will only travel about the 1/3 of the distance compared to 2.4GHz. Even the music sounds better on 5GHz WiFi Band which has a faster data speed and bandwidth.
Hopes this helps.