Others may agree or disagree but the fact is that the Punjabi culture and language is closer to Sindhi culture and language. Physically we share the same land from centuries and have similar culture. Of course present Sindh, Punjab and almost whatever is called Pakistan now, was referred to as Indus civilization historically. Political rifts after creation of Pakistan have made us differentiate each other, probably this is one of the thing we have after partition.
Well here is wonderful folk song from Musarat Nazir, listen to the language and you should easily follow it, whether you know Punjabi or not.
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Excellent .With your tuneful and trained voice you can easily sing complicated rhythms .
Visit http://www.chandiramani.com soz-e-dil ghazals : sung in 12 varieties of rhythms