Joining Multiple Songs: How to Create Seamless Mixes

Whether you're creating a workout playlist, a medley for live performance, or compiling multiple podcast segments — joining audio files into one clean track is easier than you think.

When Do You Need to Join Audio?

• Live performance medleys — combine backing tracks for multiple songs into one continuous file
• Podcast production — stitch together interview segments, intros, and outros
• Workout playlists — one long file is easier to manage than multiple tracks
• Music compilations — create a personal album from your favourite tracks
• Joining split recordings — if a long recording was split across multiple files, merge them back

How to Join Songs with 7By.in

1. Go to 7by.in/tools/song-joiner
2. Upload multiple files — select them all at once or add them one by one. All common formats accepted.
3. Drag to reorder — drag the tracks up or down to set the playback order
4. Set the gap — choose how many seconds of silence to insert between tracks (0 for gapless, 2–3 for natural pauses)
5. Check total duration — displayed automatically so you can plan
6. Click Join & Download — get a single lossless WAV of all tracks in order

Gap Settings — Which to Use?

Mixing Different Formats

One of the most useful features of 7By.in Song Joiner is that it handles mixed formats. You can combine an MP3, a WAV, and a FLAC file in the same join — the engine decodes each one individually and concatenates the raw PCM audio, then re-encodes once to WAV. This avoids format mismatch issues completely.

Tips for Professional Results

• Match volume levels — if some tracks are louder than others, adjust before joining using your phone's audio editor or a simple online normaliser
• Use consistent sample rates — mixing 44.1kHz and 48kHz files can cause subtle pitch/tempo issues. Use WAV files from the same source for best results.
• Trim first, join second — use the Audio Cutter to remove unwanted intros/outros from each track before joining
• Preview order before joining — the track list shows you the exact order; drag to confirm before hitting Join

Creating a Live Set Medley: Full Workflow

1. Remove vocals from each song using Vocal Remover
2. Pitch shift each backing track to your preferred key using Pitch Shifter (if needed)
3. Trim each track to just the section you'll perform using Audio Cutter
4. Join all trimmed tracks in performance order using Song Joiner
5. Play from a single file during your live show