======================== unified (from filesystem) ========================
                                         'bitrate'  '233.449'
                                        'duration'  '558'
                                          'artist'  'Bang on a Can All-Stars'
                                     'text_people'  'Julia Wolfe'
                                         'release'  'Bang on Can Classics'
                                           'title'  'Lick'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-vocals-1', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  ("['contemporary classical', 'electronic', 'julia wolfe', 'experimental', "
 "'ambient']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  '07'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '122.4'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Bang on Can Classics'
'TBPM' (BPM (beats per minute))                     '122.4'
'TCOM' (Composer)                                   'Julia Wolfe'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TCOP' (Copyright message)                          '(C) 2011 Cantaloupe Music'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Lick'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bang on a Can All-Stars'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '02/07'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['contemporary classical',
 'electronic',
 'julia wolfe',
 'experimental',
 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.53 dB'
'TXXX:replaygain_track_peak'                        '0.962273'

========================== row from database ==========================
                                              'id'  1376010
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Bang on a Can All-Stars - Bang on Can Classics/02 - Lick.mp3
                                         'working'  None
                                         'bitrate'  233
                                    'duration_sec'  558
                                           'genre'  electronic
                                        'filesize'  16503820
                                           'mtime'  1636912350
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 02 electronic
                                      'tag_artist'  Bang on a Can All-Stars
                                     'tag_release'  Bang on Can Classics
                                       'tag_title'  Lick
                                             'bpm'  122.4
                                    'search_title'  'lick':1
                                   'search_artist'  'a':3 'all':5 'allstars':7 'bang':1 'can':4 'on':2 'stars':6
                                  'search_release'  'bang':1 'can':3 'classics':4 'on':2
                                     'search_rest'  'electronic':1
                                    'search_combo'  'a':4B 'all':6B 'allstars':8B 'bang':2B,9C 'can':5B,11C 'classics':12C 'electronic':13 'lick':1A 'on':3B,10C 'stars':7B
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'electronic', 'julia wolfe', 'experimental', 'ambient']
                                        'tag_date'  2011
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912349.534216  (2021-11-14 18:52:29)
                             'size'  16503820