======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '82'
                                          'artist'  'They Might Be Giants'
                                     'text_people'  ''
                                         'release'  'Non-album tracks'
                                           'title'  'The Beer Song'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['quirky', 'alternative', 'rock', 'pop', 'happy']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '126.331'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Non-album tracks'
'TBPM' (BPM (beats per minute))                     '126.331'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TIT2' (Title/songname/content description)         'The Beer Song'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'They Might Be Giants'
'TRCK' (Track number/Position in set)               '1'
'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:lastfmtags'                                   ['quirky', 'alternative', 'rock', 'pop', 'happy']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.34 dB'
'TXXX:replaygain_track_peak'                        '0.348439'

========================== row from database ==========================
                                              'id'  1288341
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/They Might Be Giants/MBZ;#They Might Be Giants;#[non-album tracks];#01;#The Beer Song.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  82
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  1319986
                                           'mtime'  1621786523
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock MBZ;#They Giants;#[non tracks];#01;#The ifs songwriter indie rock
                                      'tag_artist'  They Might Be Giants
                                     'tag_release'  Non-album tracks
                                       'tag_title'  The Beer Song
                                             'bpm'  126.331
                                    'search_title'  'beer':2 'song':3 'the':1
                                   'search_artist'  'be':3 'giants':4 'might':2 'they':1
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4
                                     'search_rest'  '00poprockelectronic':1 '01':13,16 'giants':8,10 'ifs':18 'indie':20 'indierock':3 'mbz':4,6 'non':9,11 'poprock':2 'rock':21 'songwriter':19 'the':14,17 'they':5,7 'tracks':12,15
                                    'search_combo'  '00poprockelectronic':12 '01':24,27 'album':9C 'be':6B 'beer':2A 'giants':7B,19,21 'ifs':29 'indie':31 'indierock':14 'mbz':15,17 'might':5B 'non':8C,20,22 'nonalbum':10C 'poprock':13 'rock':32 'song':3A 'songwriter':30 'the':1A,25,28 'they':4B,16,18 'tracks':11C,23,26
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['quirky', 'alternative', 'rock', 'pop', 'happy']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621786522.8959439  (2021-05-23 18:15:22)
                             'size'  1319986