======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '154'
                                          'artist'  'Alexandra Streliski'
                                     'text_people'  ''
                                         'release'  'Peaceful Piano'
                                           'title'  'Berceuse'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'piano', 'piano solo', 'all', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '121'
                                      'tracktotal'  '12'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments-contemporary'
                                             'bpm'  '155'
                                             'key'  '5B'
                                        'acoustid'  'cd4aa02c-455b-4272-8b9a-f5e317f70d99'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'https://open.spotify.com/playlist/37i9dQZF1DX4sWSpwq3LiO?si=eW3PBEzOQnKBgITo9CYhKg'
'TALB' (Album/Movie/Show title)                     'Peaceful Piano'
'TBPM' (BPM (beats per minute))                     '155'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments-contemporary'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Berceuse'
'TKEY' (Initial key)                                '5B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Alexandra Streliski'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '121/12'
'TSO2'                                              'Stréliski, Alexandra'
'TSOP' (Performer sort order)                       'Stréliski, Alexandra'
'TSRC' (ISRC (international standard recording code))  'CA41Q1000012'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.20.100'
'TXXX:Acoustid Id'                                  'cd4aa02c-455b-4272-8b9a-f5e317f70d99'
'TXXX:Artists'                                      'Alexandra Stréliski'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'piano', 'piano solo', 'all', 'classical']
'TXXX:originalyear'                                 '2010'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.540519'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd68afa49-878e-4b32-81e0-04a9d3868bea')

========================== row from database ==========================
                                              'id'  1237871
                                            'path'  /data/Music/Bulk/00instruments-classical/VA - Peaceful Piano/121 - Alexandra Streliski - Berceuse.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  154
                                           'genre'  prerock-classical or classical instruments-contemporary
                                        'filesize'  6273004
                                           'mtime'  1636913715
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical VA 121 prerock classical or classical instruments contemporary
                                      'tag_artist'  Alexandra Streliski
                                     'tag_release'  Peaceful Piano
                                       'tag_title'  Berceuse
                                             'bpm'  155.0
                                    'search_title'  'berceuse':1
                                   'search_artist'  'alexandra':1 'streliski':2
                                  'search_release'  'peaceful':1 'piano':2
                                     'search_rest'  '00instruments':1 '121':4 'classical':2 'contemporary':8 'instruments':7 'or':6 'prerock':5 'va':3
                                    'search_combo'  '00instruments':6 '121':9 'alexandra':2B 'berceuse':1A 'classical':7 'contemporary':13 'instruments':12 'or':11 'peaceful':4C 'piano':5C 'prerock':10 'streliski':3B 'va':8
                                    'tag_tracknum'  121
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'piano', 'piano solo', 'all', 'classical']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913714.5538788  (2021-11-14 19:15:14)
                             'size'  6273004