======================== unified (from filesystem) ========================
                                         'bitrate'  '275.594'
                                        'duration'  '331'
                                          'artist'  'aAirial'
                                     'text_people'  ''
                                         'release'  'Samudra'
                                           'title'  'Bird Taking Flight'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'q-play-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-1', 'q-drums-1', 'q-other-4', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['ambient', 'idm', 'electronic', 'downtempo', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '139.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'Samudra'
'TBPM' (BPM (beats per minute))                     '139.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Bird Taking Flight'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'aAirial'
'TPE2' (Band/orchestra/accompaniment)               'aAirial'
'TSRC' (ISRC (international standard recording code))  'QMPKX1636373'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['ambient', 'idm', 'electronic', 'downtempo', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.601062'

========================== row from database ==========================
                                              'id'  1385086
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Parallelism - textura.org/aairial_bird_taking_flight.mp3
                                         'working'  None
                                         'bitrate'  275
                                    'duration_sec'  331
                                           'genre'  electronic
                                        'filesize'  11525424
                                           'mtime'  1636913257
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer Parallelism textura.org aairial_bird_taking_flight electronic
                                      'tag_artist'  aAirial
                                     'tag_release'  Samudra
                                       'tag_title'  Bird Taking Flight
                                             'bpm'  139.9
                                    'search_title'  'bird':1 'flight':3 'taking':2
                                   'search_artist'  'a':2 'aairial':1 'airial':3
                                  'search_release'  'samudra':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 'aairial':7 'bird':8 'electronic':11 'flight':10 'org':5 'parallelism':3 'taking':9 'textura':4 'texturaorg':6
                                    'search_combo'  '00calmer':9 '00poprockelectronic':8 'a':5B 'aairial':4B,14 'airial':6B 'bird':1A,15 'electronic':18 'flight':3A,17 'org':12 'parallelism':10 'samudra':7C 'taking':2A,16 'textura':11 'texturaorg':13
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['ambient', 'idm', 'electronic', 'downtempo', 'experimental']
                                        'tag_date'  2016
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913256.9669812  (2021-11-14 19:07:36)
                             'size'  11525424