======================== unified (from filesystem) ========================
                                         'bitrate'  '232.896'
                                        'duration'  '903'
                                          'artist'  'Organum'
                                     'text_people'  ''
                                         'release'  'Rare & Unreleased'
                                           'title'  'Slow Music B'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark ambient', 'drone', 'experimental', 'noise', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '15'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-ambient-dark'
                                             'bpm'  '132.8'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Rare & Unreleased'
'TBPM' (BPM (beats per minute))                     '132.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient-dark'
'TIT2' (Title/songname/content description)         'Slow Music B'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Organum'
'TPOS' (Part of a set)                              '1/3'
'TRCK' (Track number/Position in set)               '2/15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dark ambient', 'drone', 'experimental', 'noise', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.72 dB'
'TXXX:replaygain_track_peak'                        '0.557283'

========================== row from database ==========================
                                              'id'  1379809
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/organum - rare and unreleased/cdr 1/02 - Slow Music B.mp3
                                         'working'  None
                                         'bitrate'  232
                                    'duration_sec'  903
                                           'genre'  electronic-ambient-dark
                                        'filesize'  26314885
                                           'mtime'  1636910219
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient organum rare and unreleased cdr 1 02 electronic ambient dark
                                      'tag_artist'  Organum
                                     'tag_release'  Rare & Unreleased
                                       'tag_title'  Slow Music B
                                             'bpm'  132.8
                                    'search_title'  'b':3 'music':2 'slow':1
                                   'search_artist'  'organum':1
                                  'search_release'  'rare':1 'unreleased':2
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 '1':8 'ambient':10 'and':5 'cdr':7 'dark':11 'electronic':9 'organum':3 'rare':4 'unreleased':6
                                    'search_combo'  '00ambient':8 '00poprockelectronic':7 '1':14 'ambient':16 'and':11 'b':3A 'cdr':13 'dark':17 'electronic':15 'music':2A 'organum':4B,9 'rare':5C,10 'slow':1A 'unreleased':6C,12
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-3', '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'  ['dark ambient', 'drone', 'experimental', 'noise', 'ambient']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636910219.0907962  (2021-11-14 18:16:59)
                             'size'  26314885