| Andrea Chénier: Nemico della patria (Gérard) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:52 |
| Concerto for Clarinet and Orchestra in A major, K 622: 1. Allegro | Kjell Fagéus, The Royal Orchestra, Stockholm, Eri Klas | | | 11:56 |
| Concerto for Clarinet and Orchestra in A major, K 622: 2. Adagio | Kjell Fagéus, The Royal Orchestra, Stockholm, Eri Klas | | | 7:38 |
| Concerto for Clarinet and Orchestra in A major, K 622: 3. Rondo. Allegro | Kjell Fagéus, The Royal Orchestra, Stockholm, Eri Klas | | | 8:46 |
| Concerto for Clarinet in A major, K. 622: I. Allegro | Kjell Fagéus, The Royal Orchestra Stockholm, Eri Klas | | | 12:01 |
| Concerto no. 1 for Violin and Orchestra: I. Allegro non tanto | Malmö SymfoniOrkester, Eri Klas, Марк Давыдович Лубоцкий | | | 13:06 |
| Concerto no. 1 for Violin and Orchestra: II. Presto | Malmö SymfoniOrkester, Eri Klas, Марк Давыдович Лубоцкий | | | 4:48 |
| Concerto no. 1 for Violin and Orchestra: III. Andante | Malmö SymfoniOrkester, Eri Klas, Марк Давыдович Лубоцкий | | | 10:21 |
| Concerto no. 1 for Violin and Orchestra: IV. Allegro scherzando | Malmö SymfoniOrkester, Eri Klas, Марк Давыдович Лубоцкий | | | 8:45 |
| Concerto no. 2 for Violin and Chamber Orchestra | Malmö SymfoniOrkester, Eri Klas, Марк Давыдович Лубоцкий | | | 22:47 |
| Concerto no. 3 for Violin and Chamber Orchestra: I. Moderato | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 9:49 |
| Concerto no. 3 for Violin and Chamber Orchestra: II. Agitato | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 5:43 |
| Concerto no. 3 for Violin and Chamber Orchestra: III. Andante | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 11:02 |
| Concerto no. 4 for Violin and Orchestra: I. Andante | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 5:07 |
| Concerto no. 4 for Violin and Orchestra: II. Vivo | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 7:01 |
| Concerto no. 4 for Violin and Orchestra: III. Adagio | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 9:29 |
| Concerto no. 4 for Violin and Orchestra: IV. Lento | Malmö SymfoniOrkester, Eri Klas, Олег Крыса | | | 12:20 |
| Così fan tutte: Rivolgete a lui lo sguardo (Guglielmo) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 5:08 |
| Credo | Eesti Riiklik Sümfooniaorkester, Ellerhein, Eesti Rahvusmeeskoor, Eri Klas, Marrit Gerretz-Traksmann | | | 13:10 |
| Der fliegende Holländer: No. 6 "Mögst du, mein Kind" (Daland) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 4:48 |
| Die Entführung aus dem Serail, KV 384: No. 2 "Wer ein Liebchen hat gefunden" (Osmin) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 2:41 |
| Die Entführung aus dem Serail, KV 384: No. 3 "Solche hergelauf'ne Laffen" (Osmin) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 5:17 |
| Die Entführung aus dem Serail, KV 384: No. 19 "Ha! wie will ich triumphieren" (Osmin) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 3:35 |
| Die schweigsame Frau: Final Scene "Wie schön ist doch die Musik" (Morosus) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 5:42 |
| Die Zauberflöte, KV 620: No. 10 "O Isis und Osiris" (Sarastro) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 3:25 |
| Die Zauberflöte, KV 620: No. 15 "In diesen heil'gen Hallen" (Sarastro) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 3:55 |
| Don Carlo: Act II (opening): "Ella giammai m'amo" (Filippo) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 9:25 |
| Don Carlo: Son io, mio Carlo... Io morro (Rodrigo) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 8:47 |
| Eugene Onegin: No. 20a "Lyubvi vsye" (Gremin) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 6:02 |
| Falstaff: É sogno, o realtà? (Ford) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:42 |
| Fantasia on an Ostinato | Tampere Filharmonia, Eri Klas | | | 15:48 |
| Faust: O sainte médaille... Avant de quitter (Valentin) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:12 |
| Fidelio, op. 72: No. 4 "Hat mann nicht auch Gold" (Rocco) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 2:57 |
| Finlandia, op. 26 no. 7 | Finnish National Opera Orchestra, Finnish National Opera Chorus, Eri Klas | | | 8:19 |
| Finlandia, op. 26: Hymn | Sibelius-Akatemian sinfoniaorkesteri, Sibelius-Akatemian mieskuoro, Eri Klas | | | 3:15 |
| I Pagliacci: E fra quest' ansie... E allor perchè (Silvio) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:15 |
| Il barbiere di Siviglia: No. 5 "La calunnia" (Basilio) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 4:52 |
| La bohème: No. 19 "Vecchia zimarra" (Colline) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 2:18 |
| La Traviata: Di provenza il mar (Germont) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:45 |
| Laulu Lemminkäiselle, op. 32 no. 1 | Suomen Kansallisoopperan kuoro, Suomen Kansallisoopperan orkesteri, Eri Klas | | | 3:16 |
| Le nozze di Figaro: Hai gia vinta la causa! (Count Almaviva) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:41 |
| Lyric Suite: I. Andante amoroso | Netherlands Radio Symphony Orchestra, Eri Klas | | | 7:06 |
| Lyric Suite: II. Allegro misterioso | Netherlands Radio Symphony Orchestra, Eri Klas | | | 3:40 |
| Lyric Suite: III. Adagio appassionato | Netherlands Radio Symphony Orchestra, Eri Klas | | | 7:32 |
| Maan virsi, op. 95 | Suomen Kansallisoopperan kuoro, Suomen Kansallisoopperan orkesteri, Eri Klas | | | 7:36 |
| Macbeth: No. 10 "Come dal ciel precipita" (Banco) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 4:14 |
| Nahkhiir: 2. vaatuse finaal | Teater „Estonia” sümfooniaorkester, Teater „Estonia” ooperikoor, Eri Klas, Hendrik Krumm, Margarita Voites, Anu Kaal, Urve Tauts, Teo Maiste, Arvo Laid | | | 3:39 |
| Neiud Cádizist | Eesti Raadio estraadiorkester, Eri Klas, Margarita Voites | | | 2:54 |
| Oma maa, op. 92 | Suomen Kansallisoopperan kuoro, Suomen Kansallisoopperan orkesteri, Eri Klas | | | 12:00 |
| Padaemand: Krahvinna aaria | Eesti Riiklik Sümfooniaorkester, Eri Klas, Jenny Siimon | | | 4:30 |
| Paganini: Anna Elisa laul | Teater „Estonia” sümfooniaorkester, Eri Klas, Heli Veskus | | | 3:42 |
| Simon Boccanegra: “Il lacerato spirito” | Matti Salminen, Sinfonia Lahti, Eri Klas | | | 4:23 |
| Simone Boccanegra: No. 1b "Il lacerato, spirito" (Fiesco) | Matti Salminen, Lahti Symphony Orchestra, Eri Klas | | | 4:31 |
| Snöfrid, op. 29 | Stina Rautelin, Suomen Kansallisoopperan kuoro, Suomen Kansallisoopperan orkesteri, Eri Klas | | | 12:31 |
| Tabula Rasa: I. Ludus: Con moto | Kremerata Baltica Chamber Orchestra, Gidon Kremer, Татьяна Гринденко, Reinut Tepp, Eri Klas | | | 10:33 |
| Tabula Rasa: II. Silentium: Senza moto | Kremerata Baltica Chamber Orchestra, Gidon Kremer, Татьяна Гринденко, Reinut Tepp, Eri Klas | | | 18:30 |
| Tannhäuser: Blick ich umher (Wolfram) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 5:09 |
| Tannhäuser: Elisabethi aaria | Eesti Riiklik Sümfooniaorkester, Eri Klas, Helvi Raamat | | | 2:55 |
| Tannhäuser: Wie Todesahnung... O Du, mein holder Abendstern (Wolfram) | Tampere Filharmonia, Eri Klas, Tommi Hakala | | | 4:57 |
| Three Orchestral Pieces: No. 1. Präludium | Netherlands Radio Symphony Orchestra, Eri Klas | | | 5:13 |
| Three Orchestral Pieces: No. 2. Reigen | Netherlands Radio Symphony Orchestra, Eri Klas | | | 5:36 |
| Three Orchestral Pieces: No. 3. Marsch | Netherlands Radio Symphony Orchestra, Eri Klas | | | 9:20 |
| Turandot: Calafi aaria | Eesti Riiklik Sümfooniaorkester, Eri Klas, Hendrik Krumm | | | 3:17 |
| Väinön virsi, op. 110 | Suomen Kansallisoopperan kuoro, Suomen Kansallisoopperan orkesteri, Eri Klas | | | 9:44 |
| Violin Concerto, op. 47: I. Allegro moderato | Jaakko Kuusisto, Sibelius-Akatemian sinfoniaorkesteri, Eri Klas | | | 16:26 |
| Violin Concerto, op. 47: II. Adagio di molto | Jaakko Kuusisto, Sibelius-Akatemian sinfoniaorkesteri, Eri Klas | | | 8:22 |
| Violin Concerto, op. 47: III. Allegro, ma non tanto | Jaakko Kuusisto, Sibelius-Akatemian sinfoniaorkesteri, Eri Klas | | | 7:35 |
| Violin Concerto: I. Andante - Scherzo | Netherlands Radio Symphony Orchestra, Eri Klas, Rebecca Hirsch | | | 11:32 |
| Violin Concerto: II. Allegro - Adagio | Netherlands Radio Symphony Orchestra, Eri Klas, Rebecca Hirsch | | | 14:53 |