diff --git a/client/lib/ethos-storage.ts b/client/lib/ethos-storage.ts
new file mode 100644
index 00000000..79768b94
--- /dev/null
+++ b/client/lib/ethos-storage.ts
@@ -0,0 +1,166 @@
+import { createClient } from "@supabase/supabase-js";
+
+const supabase = createClient(
+  import.meta.env.VITE_SUPABASE_URL || "",
+  import.meta.env.VITE_SUPABASE_ANON_KEY || "",
+);
+
+const BUCKET_NAME = "ethos-tracks";
+
+export interface UploadProgress {
+  bytesUploaded: number;
+  bytesTotal: number;
+  percentComplete: number;
+}
+
+export const ethosStorage = {
+  /**
+   * Upload a track file to Supabase Storage
+   * @param file The audio file to upload
+   * @param userId The ID of the user uploading the track
+   * @param onProgress Callback for upload progress
+   * @returns The path to the uploaded file in storage
+   */
+  async uploadTrackFile(
+    file: File,
+    userId: string,
+    onProgress?: (progress: UploadProgress) => void,
+  ): Promise<string> {
+    try {
+      // Ensure bucket exists and is accessible
+      const bucketList = await supabase.storage.listBuckets();
+      const bucketExists = bucketList.data?.some((b) => b.name === BUCKET_NAME);
+
+      if (!bucketExists) {
+        // Bucket doesn't exist, we'll let the upload fail with a helpful error
+        throw new Error(
+          `Storage bucket "${BUCKET_NAME}" does not exist. Please contact support.`,
+        );
+      }
+
+      // Create a unique file path
+      const timestamp = Date.now();
+      const sanitizedFileName = file.name.replace(/[^a-zA-Z0-9._-]/g, "_");
+      const filePath = `${userId}/${timestamp}-${sanitizedFileName}`;
+
+      // Upload file
+      const { data, error } = await supabase.storage
+        .from(BUCKET_NAME)
+        .upload(filePath, file, {
+          cacheControl: "3600",
+          upsert: false,
+        });
+
+      if (error) {
+        console.error("Storage upload error:", error);
+        throw new Error(`Failed to upload file: ${error.message}`);
+      }
+
+      if (!data) {
+        throw new Error("Upload succeeded but no file path returned");
+      }
+
+      return data.path;
+    } catch (error) {
+      console.error("Track upload error:", error);
+      throw error;
+    }
+  },
+
+  /**
+   * Get a public URL for a track file
+   * @param filePath The path to the file in storage
+   * @returns The public URL for the file
+   */
+  getPublicUrl(filePath: string): string {
+    const { data } = supabase.storage
+      .from(BUCKET_NAME)
+      .getPublicUrl(filePath);
+
+    return data.publicUrl;
+  },
+
+  /**
+   * Download a track file
+   * @param filePath The path to the file in storage
+   * @returns The file data
+   */
+  async downloadTrackFile(filePath: string): Promise<Blob> {
+    const { data, error } = await supabase.storage
+      .from(BUCKET_NAME)
+      .download(filePath);
+
+    if (error) {
+      throw new Error(`Failed to download file: ${error.message}`);
+    }
+
+    if (!data) {
+      throw new Error("Download succeeded but no data returned");
+    }
+
+    return data;
+  },
+
+  /**
+   * Delete a track file
+   * @param filePath The path to the file in storage
+   */
+  async deleteTrackFile(filePath: string): Promise<void> {
+    const { error } = await supabase.storage
+      .from(BUCKET_NAME)
+      .remove([filePath]);
+
+    if (error) {
+      throw new Error(`Failed to delete file: ${error.message}`);
+    }
+  },
+
+  /**
+   * Get file metadata (size, created_at, etc.)
+   * @param filePath The path to the file in storage
+   */
+  async getFileMetadata(filePath: string) {
+    try {
+      const { data, error } = await supabase.storage
+        .from(BUCKET_NAME)
+        .info();
+
+      if (error) {
+        throw error;
+      }
+
+      return data;
+    } catch (error) {
+      console.error("Failed to get file metadata:", error);
+      throw error;
+    }
+  },
+};
+
+/**
+ * Get audio file duration in seconds
+ * @param file The audio file
+ * @returns Duration in seconds
+ */
+export async function getAudioDuration(file: File): Promise<number> {
+  return new Promise((resolve, reject) => {
+    const audioContext = new (window.AudioContext || (window as any).webkitAudioContext)();
+    const fileReader = new FileReader();
+
+    fileReader.onload = async (e) => {
+      try {
+        const arrayBuffer = e.target?.result as ArrayBuffer;
+        const audioBuffer = await audioContext.decodeAudioData(arrayBuffer);
+        resolve(audioBuffer.duration);
+      } catch (error) {
+        reject(new Error("Failed to decode audio file"));
+      }
+    };
+
+    fileReader.onerror = () => {
+      reject(new Error("Failed to read audio file"));
+    };
+
+    fileReader.readAsArrayBuffer(file);
+  });
+}