======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '174'
                                          'artist'  'Biosphere'
                                     'text_people'  ''
                                         'release'  'Insomnia'
                                           'title'  'Chamber'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'chillout', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  '17'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '142.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Insomnia'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Chamber'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Biosphere'
'TPE2' (Band/orchestra/accompaniment)               'Biosphere'
'TPOS' (Part of a set)                              '01/01'
'TRCK' (Track number/Position in set)               '09/17'
'TSSE' (Software/Hardware and settings used for encoding)  'Lame3.98'
'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'                                   ['electronica', 'electronic', 'chillout', 'experimental', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.706167'

========================== row from database ==========================
                                              'id'  983955
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0calmer/Biosphere/Insomnia/01-09 - Chamber.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  174
                                           'genre'  electronic-ambient
                                        'filesize'  7005841
                                           'mtime'  1636909862
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0calmer 01 09 electronic ambient
                                      'tag_artist'  Biosphere
                                     'tag_release'  Insomnia
                                       'tag_title'  Chamber
                                             'bpm'  142.7
                                    'search_title'  'chamber':1
                                   'search_artist'  'biosphere':1
                                  'search_release'  'insomnia':1
                                     'search_rest'  '0calmer':1 'ambient':3 'electronic':2
                                    'search_combo'  '0calmer':4 'ambient':6 'biosphere':2B 'chamber':1A 'electronic':5 'insomnia':3C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'chillout', 'experimental', 'ambient']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636909862.0883064  (2021-11-14 18:11:02)
                             'size'  7005841