======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '257'
                                          'artist'  'Salvador Dali'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Apoth du dollar (1967)'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surrealism', 'post rock', 'spoken word', 'experimental', 'paper sun']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'nonmusic-speech'
                                             'bpm'  '126.726'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ('© The Artist(s) 2005, UbuWeb (ubu.com) / WFMU (wfmu.org) / PennSound '
 '(writing.upenn.edu/pennsound) / The Center for Literary Computing '
 '(clc.wvu.edu) / Artmob (artmob.ca). All materials at UbuWeb are available '
 'for free exchange for noncommerical purposes.')
'COMM:ID3v1 Comment:XXX'                            ') The Artist(s) 2005, UbuWeb'
'TBPM' (BPM (beats per minute))                     '126.726'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-speech'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Apoth du dollar (1967)'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Salvador Dali'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:User defined text information'                'john'
'TXXX:lastfmtags'                                   ['surrealism', 'post rock', 'spoken word', 'experimental', 'paper sun']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.94 dB'
'TXXX:replaygain_track_peak'                        '0.501168'

========================== row from database ==========================
                                              'id'  275447
                                            'path'  /data/Music/Bulk/0nonmusic/Salvador Dali  (spain)/Various Tracks (Ubu.com) [192k-320k]/1. Salvador Dali - Apoth du dollar (1967).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  257
                                           'genre'  nonmusic-speech
                                        'filesize'  10294903
                                           'mtime'  1636404159
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic (spain) Various Tracks (Ubu.com) [192k 320k] 1. nonmusic speech
                                      'tag_artist'  Salvador Dali
                                     'tag_release'  None
                                       'tag_title'  Apoth du dollar (1967)
                                             'bpm'  126.726
                                    'search_title'  '1967':4,5 'apoth':1 'dollar':3 'du':2
                                   'search_artist'  'dali':2 'salvador':1
                                  'search_release'  
                                     'search_rest'  '0nonmusic':1 '1':13,14 '192k':9,10 '320k':11,12 'com':7 'nonmusic':15 'spain':2,3 'speech':16 'tracks':5 'ubu':6 'ubucom':8 'various':4
                                    'search_combo'  '0nonmusic':8 '1':20,21 '192k':16,17 '1967':4A,5A '320k':18,19 'apoth':1A 'com':14 'dali':7B 'dollar':3A 'du':2A 'nonmusic':22 'salvador':6B 'spain':9,10 'speech':23 'tracks':12 'ubu':13 'ubucom':15 'various':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['surrealism', 'post rock', 'spoken word', 'experimental', 'paper sun']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636404158.5669045  (2021-11-08 21:42:38)
                             'size'  10294903