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diff --git a/aider/website/assets/audio/tree-sitter-language-pack/35-10.mp3 b/aider/website/assets/audio/tree-sitter-language-pack/35-10.mp3
deleted file mode 100644
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diff --git a/aider/website/assets/audio/tree-sitter-language-pack/metadata.json b/aider/website/assets/audio/tree-sitter-language-pack/metadata.json
index 88b465647..87eb83df8 100644
--- a/aider/website/assets/audio/tree-sitter-language-pack/metadata.json
+++ b/aider/website/assets/audio/tree-sitter-language-pack/metadata.json
@@ -4,44 +4,48 @@
   "01-00": "Ok, there's a language definitions json file",
   "01-10": "Does it have the github repos for each language?",
   "01-29": "Ok, this is what we need.",
-  "01-45": "We need all the tags files from each language's repository. Let's have aider write a script to fetch them all.",
-  "02-05": "Let aider read the language definitions json file.",
+  "01-45": "We need to get all the tags files from each repository for aider's repo-map. Let's have aider write a script to fetch them all.",
+  "02-05": "We'll show aider the language definitions json file.",
   "03-37": "Looks like it can't find most of the tags.scm files.",
-  "04-19": "Have it try other branches besides master.",
-  "05-02": "Ok, it's downloading them now.",
-  "05-55": "Let's make it so we can re-run and avoid re-downloading.",
-  "06-12": "I see lots of tags files.",
+  "04-19": "Maybe we should have it try other branches besides master?",
+  "05-02": "Ok, it seems to be downloading them now.",
+  "05-55": "Let's make it so we can re-run the script and only download files we haven't fetched yet.",
+  "06-12": "I see lots of tags files, so it's working.",
   "06-30": "Ok, restart to run with latest code. This will take awhile to fetch them all.",
-  "09-02": "The grep-ast module needs to know about all the new languages.",
-  "09-45": "Let's have aider add them all, including their file extensions.",
-  "10-15": "Some of the languages need to be recognized by their base name, not extension.",
-  "11-15": "Let's sanity check if grep-ast can handle PowerShell now.",
+  "09-02": "The Grep-AST module needs to know about all the new languages.",
+  "09-45": "Let's have aider add them all, and register each using their commonly used file extensions.",
+  "10-15": "Some of the languages need to be recognized by their base name, not by their extension.",
+  "11-15": "Let's sanity check if Grep-AST can handle PowerShell, one of the new languages.",
   "12-00": "Looks like it's parsing PowerShell fine.",
-  "13-00": "Ok, let's download the tags into the right spot in the aider repo.",
+  "13-00": "Ok, let's download all the tags files into the right spot in the aider repo.",
   "14-00": "This will take a minute...",
-  "16-07": "Delete some bad or empty tags files.",
-  "16-16": "Add the tags to the repo.",
-  "16-33": "The tags files need to be modified to work with the repo-map.",
-  "17-01": "Let's use bash to script aider to modify each tags file.",
-  "17-12": "I'm giving aider a read-only example of working tags file, as an example to follow.",
+  "16-07": "Delete some no-op or empty tags files.",
+  "16-16": "Let's commit all the unmodified tags files.",
+  "16-33": "We need to update each tag file, so that aider can identify names of functions, classes, etc in all these languages.",
+  "17-01": "Let's use a bash loop to script aider to modify each tags file.",
+  "17-12": "I'm giving aider a read-only example of an already modified tags file, as an example to follow.",
   "19-04": "Looks like it correctly updated the first couple of tags files.",
-  "19-28": "Let's grep to watch how many name tags are left to be updated.",
+  "19-28": "Let's grep to watch aider's progress working through the list of files.",
   "21-30": "This is going to take a little while...",
   "24-39": "Let's add a README file with attribution for these tags files.",
-  "27-00": "Ok, all the tags files are updated.",
   "27-10": "Let's add test coverage to be sure these languages work with the repo-map.",
-  "27-19": "Dump the fixtures directory structure to a file, to give aider so it knows the layout.",
-  "27-50": "Use a bash script to ask aider to add test coverage for each tags file.",
-  "28-12": "Let aider read the fixtures directory listing.",
-  "28-52": "Just fixing the bash to correctly iterate through the list of tags files.",
-  "29-27": "Improve the prompt to make sure aider creates a fixture for each language.",
-  "30-25": "Lets run the repo-map tests to see if the new test works.",
-  "30-37": "Arduino failed, with an empty repo-map?",
+  "27-19": "Each language needs a \"fixture\" with some sample code to parse during the test. Let's show aider the layout of the fixtures directory.",
+  "27-50": "We can use a bash loop to ask aider to add test coverage for each new tags file.",
+  "28-12": "We'll pass the fixtures directory listing to aider.",
+  "28-52": "Just need to fix the bash to correctly iterate through the list of tags files.",
+  "29-27": "I forgot to ask aider to actually generate a sample code fixture for each language.",
+  "30-25": "Lets run the repo-map tests to see if the first new test works.",
+  "30-37": "Tests for the Arduino language failed, with an empty repo-map? That's not good.",
   "31-52": "Can aider figure out what's wrong?",
-  "32-42": "Oh! I'm not using the updated grep-ast yet.",
-  "32-54": "Ok, now we're parsing Arduino code properly. Undo that bogus test fix.",
-  "33-05": "A regression with tsx?",
+  "32-42": "Oh! I'm not using the updated Grep-AST that knows about all the new languages.",
+  "32-54": "Ok, now we're parsing Arduino code properly. Undo aider's bogus test fix.",
+  "33-05": "Ok, arduino passes now but there seems to be a regression with tsx?",
   "33-20": "Can aider figure out why?",
   "34-10": "Let's check the parsers map.",
-  "35-10": "Well, that's all for this recording."
+  "35-00": "Well, that's all for this recording. The tsx problem was due to a bad mapping from \".tsx\" to \"typescript\" in the map that aider generated earlier.",
+  "20-20": "It's working on the Dart language now...",
+  "20-50": "E-lisp is up next...",
+  "26-55": "Ok, all the files are updated with tags for definitions and references to named code objects.",
+  "32-36": "Let me see if I can use Grep-AST on the new Arduino fixture code.",
+  "32-27": "Well, aider made the test pass by basically skipping Arduino."
 }
\ No newline at end of file
diff --git a/aider/website/docs/recordings/tree-sitter-language-pack.md b/aider/website/docs/recordings/tree-sitter-language-pack.md
index ca71c8688..2b9cfcfde 100644
--- a/aider/website/docs/recordings/tree-sitter-language-pack.md
+++ b/aider/website/docs/recordings/tree-sitter-language-pack.md
@@ -21,46 +21,50 @@ const recording_url = "https://gist.githubusercontent.com/paul-gauthier/a9903334
 - 1:00 Ok, there's a language definitions json file
 - 1:10 Does it have the github repos for each language?
 - 1:29 Ok, this is what we need.
-- 1:45 We need all the tags files from each language's repository. Let's have aider write a script to fetch them all.
-- 2:05 Let aider read the language definitions json file.
+- 1:45 We need to get all the tags files from each repository for aider's repo-map. Let's have aider write a script to fetch them all.
+- 2:05 We'll show aider the language definitions json file.
 - 3:37 Looks like it can't find most of the tags.scm files.
-- 4:19 Have it try other branches besides master.
-- 5:02 Ok, it's downloading them now.
-- 5:55 Let's make it so we can re-run and avoid re-downloading.
-- 6:12 I see lots of tags files.
+- 4:19 Maybe we should have it try other branches besides master?
+- 5:02 Ok, it seems to be downloading them now.
+- 5:55 Let's make it so we can re-run the script and only download files we haven't fetched yet.
+- 6:12 I see lots of tags files, so it's working.
 - 6:30 Ok, restart to run with latest code. This will take awhile to fetch them all.
-- 9:02 The grep-ast module needs to know about all the new languages.
-- 9:45 Let's have aider add them all, including their file extensions.
-- 10:15 Some of the languages need to be recognized by their base name, not extension.
-- 11:15 Let's sanity check if grep-ast can handle PowerShell now.
+- 9:02 The Grep-AST module needs to know about all the new languages.
+- 9:45 Let's have aider add them all, and register each using their commonly used file extensions.
+- 10:15 Some of the languages need to be recognized by their base name, not by their extension.
+- 11:15 Let's sanity check if Grep-AST can handle PowerShell, one of the new languages.
 - 12:00 Looks like it's parsing PowerShell fine.
-- 13:00 Ok, let's download the tags into the right spot in the aider repo.
+- 13:00 Ok, let's download all the tags files into the right spot in the aider repo.
 - 14:00 This will take a minute...
-- 16:07 Delete some bad or empty tags files.
-- 16:16 Add the tags to the repo.
-- 16:33 The tags files need to be modified to work with the repo-map.
-- 17:01 Let's use bash to script aider to modify each tags file.
-- 17:12 I'm giving aider a read-only example of working tags file, as an example to follow.
+- 16:07 Delete some no-op or empty tags files.
+- 16:16 Let's commit all the unmodified tags files.
+- 16:33 We need to update each tag file, so that aider can identify names of functions, classes, etc in all these languages.
+- 17:01 Let's use a bash loop to script aider to modify each tags file.
+- 17:12 I'm giving aider a read-only example of an already modified tags file, as an example to follow.
 - 19:04 Looks like it correctly updated the first couple of tags files.
-- 19:28 Let's grep to watch how many name tags are left to be updated.
+- 19:28 Let's grep to watch aider's progress working through the list of files.
+- 20:20 It's working on the Dart language now...
+- 20:50 E-lisp is up next...
 - 21:30 This is going to take a little while...
 - 24:39 Let's add a README file with attribution for these tags files.
-- 27:00 Ok, all the tags files are updated.
+- 26:55 Ok, all the files are updated with tags for definitions and references to named code objects.
 - 27:10 Let's add test coverage to be sure these languages work with the repo-map.
-- 27:19 Dump the fixtures directory structure to a file, to give aider so it knows the layout.
-- 27:50 Use a bash script to ask aider to add test coverage for each tags file.
-- 28:12 Let aider read the fixtures directory listing.
-- 28:52 Just fixing the bash to correctly iterate through the list of tags files.
-- 29:27 Improve the prompt to make sure aider creates a fixture for each language.
-- 30:25 Lets run the repo-map tests to see if the new test works.
-- 30:37 Arduino failed, with an empty repo-map?
+- 27:19 Each language needs a "fixture" with some sample code to parse during the test. Let's show aider the layout of the fixtures directory.
+- 27:50 We can use a bash loop to ask aider to add test coverage for each new tags file.
+- 28:12 We'll pass the fixtures directory listing to aider.
+- 28:52 Just need to fix the bash to correctly iterate through the list of tags files.
+- 29:27 I forgot to ask aider to actually generate a sample code fixture for each language.
+- 30:25 Lets run the repo-map tests to see if the first new test works.
+- 30:37 Tests for the Arduino language failed, with an empty repo-map? That's not good.
 - 31:52 Can aider figure out what's wrong?
-- 32:42 Oh! I'm not using the updated grep-ast yet.
-- 32:54 Ok, now we're parsing Arduino code properly. Undo that bogus test fix.
-- 33:05 A regression with tsx?
+- 32:27 Well, aider made the test pass by basically skipping Arduino.
+- 32:36 Let me see if I can use Grep-AST on the new Arduino fixture code.
+- 32:42 Oh! I'm not using the updated Grep-AST that knows about all the new languages.
+- 32:54 Ok, now we're parsing Arduino code properly. Undo aider's bogus test fix.
+- 33:05 Ok, arduino passes now but there seems to be a regression with tsx?
 - 33:20 Can aider figure out why?
 - 34:10 Let's check the parsers map.
-- 35:10 Well, that's all for this recording.
+- 35:00 Well, that's all for this recording. The tsx problem was due to a bad mapping from ".tsx" to "typescript" in the map that aider generated earlier.