In casual American English, "Can you play that tune on the guitar?" sounds like "kuhn yoo PLAY dhat TOON ahn dhuh guh-TAR". Several things happen here, and the headline one is the Consonant-to-Vowel Linking: the consonant links forward into the next vowel without a pause. Keep stressed words long, unstressed words short, and link the consonants forward into the vowels.
Now you try.
Read the sentence out loud at native speed. The mic stays on your device — nothing's uploaded.
What makes this sentence sound American.
The "" at the end of "tune" flows directly into the vowel starting "on" — the consonant migrates to the next word with no pause between. This is called the Consonant-to-Vowel Linking, how Americans glue words together so they sound like one phrase. It comes out as TOON.
What's happening in this sentence.
Small tricks that turn a textbook sentence into how an American actually says it.
Common pronunciation mistakes in American English.
The textbook way isn't wrong — it's just not how anyone actually says it.
Pausing between the words.
The "" at the end of "" flows directly into the vowel starting "" — the consonant migrates to the next word with no pause between. Final consonant "migrates" to next word — no pause between.
Pronouncing the identical consonant twice.
The "" shared between "" and "" is held once, slightly longer, and released once instead of stopping and starting twice. Consonant is held slightly longer and released once (not said twice).
Pronouncing the function word too fully.
"can" is a function word — in connected speech, the full vowel reduces to a quick "" sound and consonants may simplify. Full vowel reduces to schwa /ə/ or other weak vowel. Consonants may simplify.
Saying a clean TH.
The TH in "that" can be produced with the tongue tip pressing just behind the upper teeth rather than coming all the way through — an easier, faster articulation. Tongue tip presses behind teeth instead of coming through (easier articulation).