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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ggt_LoansOfPortfolioSecuritiesRiskMember_lbl" xml:lang="en-US">Loans Of Portfolio Securities Risk [Member]</link:label>
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ggt_CyberSecurityRiskMember_lbl" xml:lang="en-US">Cyber Security Risk [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_MisconductOfEmployeesAndOfServiceProvidersRiskMember" xlink:label="ggt_MisconductOfEmployeesAndOfServiceProvidersRiskMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_MisconductOfEmployeesAndOfServiceProvidersRiskMember" xlink:to="ggt_MisconductOfEmployeesAndOfServiceProvidersRiskMember_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_AntiTakeoverProvisionsMember" xlink:label="ggt_AntiTakeoverProvisionsMember" />
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      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ggt_AntiTakeoverProvisionsMember_lbl" xml:lang="en-US">Anti Takeover Provisions [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_SpecialRisksToHoldersOfCommonStockMember" xlink:label="ggt_SpecialRisksToHoldersOfCommonStockMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_SpecialRisksToHoldersOfCommonStockMember" xlink:to="ggt_SpecialRisksToHoldersOfCommonStockMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ggt_SpecialRisksToHoldersOfCommonStockMember_lbl" xml:lang="en-US">Special Risks To Holders Of Common Stock [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_CommonStockDistributionPolicyRiskMember" xlink:label="ggt_CommonStockDistributionPolicyRiskMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_CommonStockDistributionPolicyRiskMember" xlink:to="ggt_CommonStockDistributionPolicyRiskMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ggt_CommonStockDistributionPolicyRiskMember_lbl" xml:lang="en-US">Common Stock Distribution Policy Risk [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_SpecialRisksToHoldersOfFixedRatePreferredSharesMember" xlink:label="ggt_SpecialRisksToHoldersOfFixedRatePreferredSharesMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_SpecialRisksToHoldersOfFixedRatePreferredSharesMember" xlink:to="ggt_SpecialRisksToHoldersOfFixedRatePreferredSharesMember_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_SpecialRisksForHoldersOfAuctionRatePreferredStockMember" xlink:label="ggt_SpecialRisksForHoldersOfAuctionRatePreferredStockMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_SpecialRisksForHoldersOfAuctionRatePreferredStockMember" xlink:to="ggt_SpecialRisksForHoldersOfAuctionRatePreferredStockMember_lbl" xlink:type="arc" />
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      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_SpecialRiskForHoldersOfSubscriptionRightsMember" xlink:label="ggt_SpecialRiskForHoldersOfSubscriptionRightsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_SpecialRiskForHoldersOfSubscriptionRightsMember" xlink:to="ggt_SpecialRiskForHoldersOfSubscriptionRightsMember_lbl" xlink:type="arc" />
      <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ggt_SpecialRiskForHoldersOfSubscriptionRightsMember_lbl" xml:lang="en-US">Special Risk For Holders Of Subscription Rights [Member]</link:label>
      <link:loc xlink:type="locator" xlink:href="ggt-20241231.xsd#ggt_AdditionalRisksRelatingToDerivativeInvestmentsMember" xlink:label="ggt_AdditionalRisksRelatingToDerivativeInvestmentsMember" />
      <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ggt_AdditionalRisksRelatingToDerivativeInvestmentsMember" xlink:to="ggt_AdditionalRisksRelatingToDerivativeInvestmentsMember_lbl" xlink:type="arc" />
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