======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '229'
                                          'artist'  'F.S. Blumm & Nils Frahm'
                                     'text_people'  ''
                                         'release'  'Music for Lovers, Music Versus Time'
                                           'title'  'Writing Letters to Myself'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-1', 'q-busy-1', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'modern classical', 'piano', 'experimental', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '9'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '91'
                                             'key'  '12B'
                                        'acoustid'  'a352b719-80b9-4aee-8f1d-df1751c837aa'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Music for Lovers, Music Versus Time'
'TBPM' (BPM (beats per minute))                     '91'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010-06-18'
'TIT2' (Title/songname/content description)         'Writing Letters to Myself'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'F.S. Blumm & Nils Frahm'
'TPE2' (Band/orchestra/accompaniment)               'F.S. Blumm & Nils Frahm'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sonic Pieces'
'TRCK' (Track number/Position in set)               '3/9'
'TSO2'                                              'F.S. Blumm & Frahm, Nils'
'TSOP' (Performer sort order)                       'F.S. Blumm & Frahm, Nils'
'TSRC' (ISRC (international standard recording code))  'DEX261381703'
'TXXX:Acoustid Id'                                  'a352b719-80b9-4aee-8f1d-df1751c837aa'
'TXXX:Artists'                                      'F.S. Blumm/Nils Frahm'
'TXXX:CATALOGNUMBER'                                'sonicpieces 008'
'TXXX:MusicBrainz Album Artist Id'                  '20741f23-0e12-49d6-b606-5945ed3e8de0/d03a54bc-6e07-4c04-a8d4-7fbf2bd07a01'
'TXXX:MusicBrainz Album Id'                         'c83acc88-6728-4627-9542-e88575eab9a0'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '20741f23-0e12-49d6-b606-5945ed3e8de0/d03a54bc-6e07-4c04-a8d4-7fbf2bd07a01'
'TXXX:MusicBrainz Release Group Id'                 'c3772b0c-3045-4f57-9efb-99116a4e04fd'
'TXXX:MusicBrainz Release Track Id'                 'e4381f36-73e2-3be6-8c58-a7a9cf0e1d3f'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'modern classical', 'piano', 'experimental', 'ambient']
'TXXX:originalyear'                                 '2010'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.19 dB'
'TXXX:replaygain_track_peak'                        '0.554473'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'adf9d10a-7e32-4d34-8687-daecf9a6992c')

========================== row from database ==========================
                                              'id'  185483
                                            'path'  /data/Music/Bulk/00instruments-classical/Nils Frahm/2010 - Music For Lovers Music Versus Time (& F.S. Blumm)/03 - Writing To Myself.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  229
                                           'genre'  electronic-ambient
                                        'filesize'  9224949
                                           'mtime'  1636910491
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical 2010 For (& Blumm) 03 To electronic ambient
                                      'tag_artist'  F.S. Blumm & Nils Frahm
                                     'tag_release'  Music for Lovers, Music Versus Time
                                       'tag_title'  Writing Letters to Myself
                                             'bpm'  91.0
                                    'search_title'  'letters':2 'myself':4 'to':3 'writing':1
                                   'search_artist'  'blumm':4 'f':1 'frahm':6 'fs':3 'nils':5 's':2
                                  'search_release'  'for':2 'lovers':3,4 'music':1 'time':6 'versus':5
                                     'search_rest'  '00instruments':1 '2010':3 'ambient':9 'blumm':5,6 'classical':2 'electronic':8 'for':4 'to':7
                                    'search_combo'  '00instruments':17 '2010':19 'ambient':25 'blumm':8B,21,22 'classical':18 'electronic':24 'f':5B 'for':12C,20 'frahm':10B 'fs':7B 'letters':2A 'lovers':13C,14C 'music':11C 'myself':4A 'nils':9B 's':6B 'time':16C 'to':3A,23 'versus':15C 'writing':1A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'modern classical', 'piano', 'experimental', 'ambient']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910491.4297228  (2021-11-14 18:21:31)
                             'size'  9224949