The spelling of "nettelbeck" can be explained using the International Phonetic Alphabet (IPA). The initial "n" is pronounced as /n/, while the first "e" is pronounced as /ɛ/. The following "t" is pronounced as /t/ and the second "e" is pronounced as /ə/. The double "l" is pronounced as /l/, and the following "b" is pronounced as /b/. Finally, the "e" and "c" are pronounced as /ə/ and /k/ respectively. Overall, the IPA transcription for "nettelbeck" is /ˈnɛtlbək/.